identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
749C5ED1398C58C2AE460AA1D52B69F4.text	749C5ED1398C58C2AE460AA1D52B69F4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus (Boletinus) (Kalchbr.) R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus subg. Boletinus (Kalchbr.) R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu comb. &amp; stat. nov.</p><p>Basionym.</p><p>Boletinus Kalchbr., Mathematische und naturwissenschaftliche Mitteilungen. Mathem. Természettud. Közlem. 5: 286 (1867).</p><p>Typification.</p><p>Suillus cavipes (Klotzsch) A. H. Sm. and Thiers, Monogr. North Amer. Species Suillus: 30 (1964)</p><p>Etymology.</p><p>The subgenus name is referred from a former genus name “ Boletinus ”.</p><p>Diagnosis.</p><p>This subgenus differs from all other subgenera of Suillus by the presence of clamp connections in the hyphae of sporophores, pileus usually red, bright pinkish or yellowish brown, spore print brown with olive yellow, vinaceous or purple tinge.</p><p>Morphology.</p><p>Basidiomata stipitate-pileate with tubular hymenophore. Pileus develops from hemispherical to convex or applanate, fibrillose or squamulose, dry, usually red, bright pinkish or yellowish brown when mature; context yellow, no color change when cut. Hymenophore boletinoid, pores wide and compound, radially arranged, sometimes decurrent. Stipe subcylindrical to cylindrical, generally hollows in maturity, some remain solid, no glandular dots; veil presents, generally forming a double and dry annulus. Spore print brown with olive yellow, vinaceous or purple tinge.</p><p>Basidiospores smooth, oblong and inequilateral, hyaline yellow in KOH. Basidia 4 - spored, clavate, hyaline yellow in KOH. Cystidia abundant, large, up to 100 μm, surrounded by brown amorphous materials or not. Pileipellis a trichoderm, thin-walled, often tangled. Clamps constantly present in the trama of sporophores and in basidial basal septum, except in one species.</p><p>Habitat.</p><p>Scattered to gregarious, ectomycorrizal with Larix .</p><p>Known species.</p><p>Suillus ampliporus, S. asiaticus, S. cavipes complex, S. ochraceoroseus, S. paluster, and probably S. foetidus (See Notes).</p><p>Notes.</p><p>Boletinus was delimitated by Singer (1986) as a genus was almost correct except for S. ochraceoroseus without clamps. Boletinus is better to be retained in the genus Suillus . The key feature to differentiate Boletinus from other Suillus subgenera is the presence of clamps, but this character is not without an exception and the evolutionary function of clamps is not clear. More than three potential new species are reported in subg. Boletinus . Suillus cavipes remains a species complex. Suillus ampliporus is a replaced name of North American S. cavipes based on the geographical distribution (Nguyen et al. 2016). The geographical range of S. cavipes complex extends to northern China and is likely panboreal.</p></div>	https://treatment.plazi.org/id/749C5ED1398C58C2AE460AA1D52B69F4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
69350E5D62DF514E9AB5AB3E57534D65.text	69350E5D62DF514E9AB5AB3E57534D65.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus (Douglasia) R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus subg. Douglasia R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu subgen. nov.</p><p>Etymology.</p><p>“ Douglasia ” refers from “Douglas fir”, the common name of Pseudotsuga menziesii, which is the only known host for the subgenus.</p><p>Typification.</p><p>Suillus caerulescens A. H. Sm. and Thiers</p><p>Diagnosis.</p><p>This subgenus is exclusively associated with Pseudotsuga menziesii . Other features of this subgenus include the glabrous or fibrillose pileus; solid, annulated, stipe lacking glandular dots; stipe often changing color to green or blue when cut and lacking clamp connections.</p><p>Morphology.</p><p>Basidiomata stipitate-pileate with tubular hymenophore. Pileus develops from hemispherical to convex or applanate, glabrous or covered with fine appressed scales, viscid beneath the fibrillose scales, or viscid but not glutinous, rusty to pale brown or with cinnamon tinge; context yellow, no color change when cut. Hymenophore broadly adnate to subdecurrent, tubes 5–10 mm deep, or up to 15 mm deep, staining brownish when bruised, mouths 1–2.5 mm diameter, angular, and radially arranged. Stipe equal, tapering downwards or upwards, solid, dry and floccose, lacking glandular dots, veil superior, membranous to floccose or gelatinous; reticulate at apex, context of lower stipe sometimes changing color to green or blue when cut. Spore print dull cinnamon or brownish.</p><p>Basidiospores smooth, oblong or suboblong, ochraceous in KOH, usually 7–11 μm. Basidia 4 - spored, clavate, hyaline yellow in KOH. Cystidia abundant, typically fasciculate, hyaline, or containing brown content and surrounded by brown amorphous material in KOH. Pileipellis usually with two layers, inner layer composed of gelatinous interwoven hyphae, and the other of ochraceous smooth or incrusted hyphae in KOH. Clamp connections absent.</p><p>Habitat.</p><p>Scattered to gregarious, ectomycorrizal with Pseudotsuga menziesii .</p><p>Known species.</p><p>Suillus caerulescens, S. lakei and S. ponderosus</p><p>Notes.</p><p>The grouping of the three species associated with Pseudotsuga menziesii ( S. caerulescens, S. lakei, S. ponderosus) could not be classified to any subgenera in previous publications. The three species were not treated as related species in Smith and Thiers (1964) or Singer (1986). Previous section classification generally overlooked the host associations with Pseudotsuga . The three species were supported as monophyletic in past ITS phylogenies, but no higher classification was proposed (Kretzer et al. 1996; Nguyen et al. 2016). Efforts were undertaken to search for Suillus under Asian Pseudotsuga trees, but none were found from sporophore surveys or ecological root tip sampling (Murata et al. 2013; Wen et al. 2014; this study). The geographic range of the subgenus is restricted to Western North America and Rocky Mountains in North America delimited by the range of Pseudotsuga menziesii .</p></div>	https://treatment.plazi.org/id/69350E5D62DF514E9AB5AB3E57534D65	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
5E04BA554ADB57D18D068BC09C448E71.text	5E04BA554ADB57D18D068BC09C448E71.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus (Fuscoboletinus) (Pomerl. & A. H. Sm.) R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus subg. Fuscoboletinus (Pomerl. &amp; A. H. Sm.) R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu comb. &amp; stat. nov.</p><p>Basionym.</p><p>Fuscoboletinus Pomerl. &amp; A. H. Sm., Brittonia 14: 157 (1962)</p><p>Typification.</p><p>Fuscoboletinus sinuspaulianus Pomerl. &amp; A. H. Sm.</p><p>Etymology.</p><p>The subgenus name is referred from its type, Fuscoboletinus sinuspaulianus .</p><p>Diagnosis.</p><p>The subgenus differs from other subgenera mainly by spore print color. Pileus is usually red, and viscid to glutinous. Veils is glutinous, or dry and fibrillose. Glandular dots are lacking. Spore print is purplish brown in mass. Clamp connections are absent and associated with Larix .</p><p>Morphology.</p><p>Basidiomata stipitate-pileate with tubular hymenophore. Pileus develops from hemispherical to convex or applanate, viscid to glutinous, usually red to brown in maturity, with or without scales or fibrils, with appendiculate veil remnants; context yellow, no color change when cut or slowly turning to pinkish and brown. Hymenophore boletinoid, separable, pores up to 2 mm, angular or irregular, and radially arranged. Stipe subcylindrical to cylindrical, solid, lacking glandular dots; veil viscid or dry and floccose; stipe surface floccose or viscid. Spore print purplish brown.</p><p>Basidiospores smooth, oblong and inequilateral, hyaline yellow in KOH, usually 7–11 μm, one species has large basidiospores 12–14 μm. Basidia 4 - spored, clavate, hyaline yellow in KOH. Cystidia abundant, typically fasciculate, large, up to 100 μm, with brown content and surrounded by brown amorphous materials in KOH. Pileipellis a layer of gelatinous hyphae, with yellowish hyaline content in KOH. Clamp connections absent.</p><p>Habitat.</p><p>Scattered to gregarious, ectomycorrizal with Larix .</p><p>Known species.</p><p>Suillus glandulosus, S. sinuspaulianus and S. spectabilis .</p><p>Notes.</p><p>The grouping of S. spectabilis, S. sinuspaulianus, and S. glandulosus was not found in older mycological references. Singer (1986) placed Suillus spectabilis and S. ochraceoroseus in section Solidipedes, and S. sinuspaulianus and S. glandulosus in section Glandulosi . Pomerleau and Smith (1962) classified all three species in the genus Fuscoboletinus along with several species from other Suillus subgenera (Table 1). Subgenus Fuscoboletinus is the less speciose subgenus in genus Suillus .</p><p>Further studies are required for identifying hosts of S. sinuspaulianus and S. glandulosus and for determining whether the two are better treated as synonyms (Nguyen et al. 2016). Reported hosts of S. sinuspaulianus are Pinus sp., Abies balsamea and Picea glauca in Canada (Pomerleau and Smith 1962). Documented hosts of S. glandulosus are Abies balsamea in Quebec (Canada) and Thuja occidentalis in Michigan (USA) (Pomerleau and Smith 1962). The hosts of this species have never been confirmed from colonized mycorrhizal root tips, but phylogeny is well-supported to place this species within the Larix associated Suillus clade. Therefore, Nguyen et al. (2016) suggests that Larix species could be the primary host. However Pérez-Pazos et al. (2021) showed that Picea and Abies can also be secondary hosts. However, none of the hosts have been adequately confirmed. Collections of Suillus spectabilis from northeastern China were supported as conspecific with North American counterparts by GCPSR and coalescence. Population genetic studies are needed to assess the genomic divergence of S. spectabilis populations across the continents.</p></div>	https://treatment.plazi.org/id/5E04BA554ADB57D18D068BC09C448E71	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
0E97E3240A4459278F63CE96CC0B67BB.text	0E97E3240A4459278F63CE96CC0B67BB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus (Larigni) (Estades and Lannoy) R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus subg. Larigni (Singer ex Estadès and Lannoy) R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu comb. &amp; stat. nov.</p><p>Basionym.</p><p>Suillus sect. Larigni Singer ex Estadès and Lannoy Docums Mycol. 31 (no. 121): 57 (2001).</p><p>Etymology.</p><p>was derived from “ Larignus ”, meaning of the larch.</p><p>Typification.</p><p>Suillus grevillei (Klotzsch) Singer, Farlowia 2 (2): 259 (1945).</p><p>Diagnosis.</p><p>Main features of this subgenus include glabrous and glutinous or dry pileus with scales, solid, annulate stipe, lacking glandular dots, olive brown or dull cinnamon spore print and lacking clamp connections.</p><p>Morphology.</p><p>Basidiomata stipitate-pileate with tubular hymenophore. Pileus develops from hemispherical to convex or applanate, viscid to glutinous and glabrous, or dry with appressed scales, usually yellowish, orange or brown in maturity, sometimes pellicle separable, context yellow, no color change when cut. Hymenophore adnate to subdecurrent, 1 to 2 per mm, angular. Stipe equal to slightly clavate, solid, lacking glandular dots, veil dry and floccose, in some species context changes color to blue or green when exposed. Spore print olive brown to brown when moist, dull cinnamon when dry.</p><p>Basidiospores smooth, oblong or suboblong, ochraceous in KOH, usually 7–11 μm. Basidia 4 - spored, clavate, hyaline yellow in KOH. Cystidia abundant, typically fasciculate, hyaline, or containing brown contents and surrounded by brown amorphous materials in KOH. Pileipellis a layer of gelatinous hyphae, with yellowish hyaline content in KOH. Clamp connections absent.</p><p>Habitat.</p><p>Scattered to gregarious, ectomycorrizal with Larix .</p><p>Known species.</p><p>Suillus alpinus, S. aurihymenius, S. bresadolae, S. elbensis, the S. grevillei complex, S. grisellus, S. lariciphilus, S. phylolaricinus, S. tridentinus and S. viscidus complex.</p><p>Notes.</p><p>Excluding subgenera Boletinus and Fuscoboletinus, the rest of the Suillus – Larix species belong to subgenus Larigni . Section Larigni (Singer 1986) is very close to the current delimitation of subgenus Larigni because representative species were included from all major clades in this section. But the taxonomic description of section Larigni was not comprehensive and the known diversity was not comparable with the current understanding.</p><p>Many new species in the subg. Larigni can be recognized and supported by molecular phylogenies. However, taxonomic treatments applying for the new species are deferred pending further study. More focused study is required for resolving the S. grevillei and S. viscidus complexes with minor morphological variations. More comprehensive collections help to confirm host associations and geographic range of some cryptic new species. Though geographic range seems useful in resolving species in the two complexes, one putative new species of S. grevillei distributes intercontinentally across North America and Europe. East Asia is the diversity hotspot for subgenus Larigni . East Asian collections are found in all major clades of subg. Larigni . Efforts towards the sampling of East Asian Larix have resulted in the discovery of many new species in the subgenus (Shi et al. 2016). For further studies on the subg. Larigni, it is recommended to use LSU, TEFα- 1 and RPB 2 instead of ITS sequences to resolve phylogenetic relationships.</p></div>	https://treatment.plazi.org/id/0E97E3240A4459278F63CE96CC0B67BB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
D31A82D7DCF9546CB1E3119B223C6B2F.text	D31A82D7DCF9546CB1E3119B223C6B2F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus (sect. Diversipedes) R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus sect. Diversipedes R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sect. nov.</p><p>Etymology.</p><p>This section contains a large number of species and is morphologically very diverse. Therefore, the derivation is from diversi - (diverse) and pes (foot).</p><p>Diagnosis.</p><p>Suillus sect. Diversipedes is distinguished by its striking morphological diversity. Key feature is that sect. Diversipedes form ectomycorrhizal primarily with Pinus (rarely Quercus). Morphological identifications include: stipes with or without glandular dots (variable in color); partial veil (if present) fibrillose, gelatinous, or membranous; spores olive to cinnamon-brown.</p><p>Typification.</p><p>Suillus tomentosus Singer, Snell &amp; E. A. Dick, Mycologia 51 (4): 570 (1960) [1959]</p><p>Morphology.</p><p>Basidiomata stipitate-pileate with tubular hymenophore. Pileus develops from hemispherical to convex, plane or umbonate, sometimes with wavy or recurved margin, viscid to glutinous, or dry, glabrous or covered with fibrils, squamules or scales. Background color ivory to yellow. Some species are covered with pinkish, brown, red or yellow fibrils, appressed squamules or scales. Pileus contains colored scales and glutinous layers yellow, yellowish white, brown, dark brown, olive brown, olive, pinkish, red, or cinnamon. Hymenophore adnate, subdecurrent or decurrent, Pores 1–2 per mm, large ones up to 5 mm diameter, round to angular, radially arranged to almost lamellate. Younger ones of some species beaded with white or yellowish droplets. Sometimes changing color to brownish or light blue when bruised or cut. Context white, whitish yellow, yellow or light orange in pileus and stipe. Stipe context sometimes changing color to blue, greenish blue, reddish or brownish. Stipe equal to clavate, solid, with or without glandular dots, glandular dots whitish, yellow, reddish, brown, or cinnamon brown when young, become cinnamon brown or brown with age. With or without veils, veils often superior, white, pinkish or brownish, persistent or evanescent, fibrillose, cottony, gelatinous, glutinous or membranous. Mycelia always white or pinkish, sometimes changing color to pinkish or red when bruised. Spore print olive, brown, cinnamon brown or olive brown.</p><p>Basidiospores smooth, oblong and inequilateral, hyaline yellow to ochraceous brown in KOH, usually 7–11 μm. Basidia 4 - spored, clavate, hyaline yellow in KOH. Cystidia abundant, typically fasciculate, large, up to 100 μm, with brown contents and surrounded by brown amorphous materials in KOH, some species lack caulocystidia. Pileipellis a layer of gelatinous hyphae, with yellowish hyaline content in KOH; some species with a layer of scales that are smooth and light ochraceous in KOH. Clamp connections absent.</p><p>Habitat.</p><p>Scattered to gregarious, ectomycorrizal with Pinus .</p><p>Known species.</p><p>Suillus acerbus, S. acidus, S. americanus, S. boletoluteus, S. bovinus, S. cinerescens, S. cothurnatus, S. decipiens, S. discolor (possibly), S. flavidus, S. fuscotomentosus, S. helenae, S. himalayensis, S. hirtellus, S. kwangtungensis, S. megaporinus, S. minusculus, S. phylopictus, S. phylosubaureus, S. pinetorum, S. plorans, S. punctipes, S. salmonicolor, S. sibiricus, S. spraguei, S. subalutaceus, S. subaureus, S. subcinnamomeus, S. subolivaceus, S. subsibiricus, S. suilloides, S. tomentosus, and S. umbonatus .</p><p>Notes.</p><p>This section is morphologically very diverse. Pileus dry or viscid to glutinous, glabrous or fibrillose to scaly, cap colors variable, colors include yellow, yellowish white, brown, dark brown, olive brown, olive, pinkish, red, and cinnamon. Stipe background color also variable, concolorous or not with pileus. Glandular dots present or not, when present color varies from white, yellow, reddish, brownish. Partial veil present or absent, when present either as appendiculate margin or if an annulus then fibrillose, gelatinous, glutinous or membranous, persistent or evanescent. Spore deposits brown, olive brown, or reddish brown. Hosts of this section include Pinus subgenera Pinus and Strobus . Suillus subaureus is capable of forming association with Quercus .</p><p>This section contains numerous potential new or cryptic species. For instance, Suillus cinerescens contains cryptic species with distinct morphological features waiting to be confirmed with more collections. Suillus pinetorum, S. plorans and S. subsibiricus contain geographic cryptic species. An unknown species from Russia, sisters to S. subcinnamomeus is identified in the ITS phylogeny as a potential new species. More species complexes are found in this section compared with other section and subgenera. Resolving species in section Diversipedes requires large sample collections and phylogenetically informative sequences.</p></div>	https://treatment.plazi.org/id/D31A82D7DCF9546CB1E3119B223C6B2F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
80BAB63CD4485538AA7AB34EA4543F2A.text	80BAB63CD4485538AA7AB34EA4543F2A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus (sect. Suillus) Gray sect. Suillus	<div><p>Suillus Gray sect. Suillus</p><p>Etymology.</p><p>autonym.</p><p>Typification.</p><p>Suillus luteus (L.) Roussel</p><p>Morphology.</p><p>Basidiomata stipitate-pileate with tubular hymenophore. Pileus develops from hemispherical to convex or plane, viscid to glutinous, glabrous, with small color streaks that resemble fine fibrils in some species. Cap is usually covered with a layer of greyish or brown glue when young that dries out or remains viscid. Background color white or yellowish white when young, becoming yellow or dark yellow with age. Cap color varies from whitish yellow to dark brown at maturity. Hymenophore adnate to subdecurrent, pores 1–2 per mm, round to angular, radially arranged, younger ones are usually beaded with white, yellowish or pinkish droplets. Context whitish yellow to yellow in pileus and stipe. Stipe context sometimes changing color to blue, greenish blue, reddish or brownish. Stipe equal to clavate, solid, glandular dots always present, whitish, yellow or reddish when young, becoming cinnamon brown or brown with age. Veils absent except in the clade of Suillus luteus and S. aestivoluteus . When present, veil superior, white, cottony or sheer texture. Mycelia always white or pinkish. Spore print dull cinnamon, brown, or cinnamon brown.</p><p>Basidiospores smooth, oblong and inequilateral, hyaline yellow to ochraceous brown in KOH, usually 7–11 μm. Basidia 4 - spored, clavate, hyaline yellow in KOH. Cystidia abundant, typically fasciculate, large, up to 100 μm, with brown content and surrounded by brown amorphous material in KOH. Pileipellis a layer of gelatinous hyphae, with yellowish hyaline content in KOH. Clamp connections absent.</p><p>Habitat.</p><p>Scattered to gregarious, ectomycorrizal with Pinus subg. Pinus and Strobus .</p><p>Known species.</p><p>Suillus aenoplacidus, S. albivelatus, S. anomalus, S. bellinii, S. borealis, S. brevipes, S. brunnescens, S. collinitus, S. flavopunctipes, S. fluryi, S. glandulosipes, S. granulatus, S. indicus, S. kaibabensis, S. longiflavopunctipes, S. luteus, S. aestivoluteus, S. marginielevatus, S. mediterraneensis, S. neoalbidipes, S. occidentalis, S. placidus, S. pseudoalbivelatus, S. psuedobrevipes, S. pungens, S. quiescens, S. subalpinus, S. triacicularis, S. volcanalis, S. wasatchicus, S. weaverae and S. zangii .</p><p>Notes.</p><p>For this section, pileus is always glabrous, some species have small greyish or brown color streaks resembling fine fibrils. Most species have a glutinous layer over the cap, and the glue appears greyish or brown in younger sporophores. Stipe background color is often white to yellowish white. Glandular dots always present, and usually develop from light color to cinnamon brown or brown with age. Partial veils are absent except in the clade of Suillus luteus and S. aestivoluteus . These two species have both appendiculate veil remnants on the cap margin and an annulus on stipe. Spore print always dull cinnamon, brown, or cinnamon brown. Cheilocystidia, pleurocystidia and caulocystidia are always abundant. In general, morphological characters alone are not sufficient for delimiting section Suillus from section Diversipedes . Both Pinus subg. Pinus and Strobus are hosts for the section.</p><p>The current delimitation of the two sections is supported by phylogenies of RPB 2 and concatenated datasets (Table 3. Morphological features are not effective in separating the two sections. In general, section Suillus is morphologically more consistent with the presence of a glutinous pileus and glandular dots. In micromorphology, section Suillus always has a layer of gelatinous hyphae on pileus and a stipe with caulocystidia in fascicles. Host association does not help delimit the two sections because both are associated with Pinus subgenera Pinus and Strobus . Geographic ranges of the two sections overlap.</p><p>Estadès and Lannoy (2001) included the type of the genus Suillus, S. luteus in the Suillus sect. Granulati . However, according to the Article 22.2 of the International Code of Nomenclature for algae, fungi, and plants (“ A name of a subdivision of a genus that includes the type of the legitimate name of the genus is not validly published unless its epithet repeats the generic name unaltered ”), the name of the section is invalid as this section contains the type of the genus Suillus . Many synonymous species are found in the Suillus pseudobrevipes complex (Nguyen et al. 2016; Suppl. material 1: fig. S 2). The ITS phylogeny only supports one species in the Suillus pseudobrevipes complex and morphological variations across different developmental stages are found to be common in this complex. This may suggest S. pseudobrevipes complex is an actively evolving species complex. Genetic isolation by physical barriers (ex: high mountains, islands) leads to separation and speciation. Therefore, these synonyms may represent multiple species instead of morphotypes in different developmental stages.</p></div>	https://treatment.plazi.org/id/80BAB63CD4485538AA7AB34EA4543F2A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
F61F8436B534514E9BD0E9CB2E00B0EC.text	F61F8436B534514E9BD0E9CB2E00B0EC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus (Suillus) Gray	<div><p>Suillus Gray subg. Suillus</p><p>Typification.</p><p>Suillus luteus (L.) Roussel</p><p>Diagnosis.</p><p>This subgenus contains numerous species with a wide spectrum of morphological variations. All are associated with Pinus except two species. The clamp connections are lacking.</p><p>Morphology.</p><p>Basidiomata stipitate-pileate with tubular hymenophore. Pileus develops from hemispherical or convex to subconvex, plane or umbonate, sometimes with wavy margin, viscid to glutinous or dry, glabrous or covered with fibrils or scales. Background color of the cap varies from ivory to yellow. Some species are covered with yellowish, pinkish, red or brown fibrils or scales. Cap color highly variable, colors include ivory, yellowish white, yellow, brown, dark brown, olive brown, olive, pinkish, and red. Hymenophore adnate, subdecurrent or decurrent, pores 1–2 per mm occasionally up to 5 mm diameter, round to angular, radially arranged or almost lamellate. Some younger ones beaded with white or yellowish droplets. Pores and tubes in some species changing color to brownish or light blue when bruised or cut. Pileus and Stipe Context white, whitish yellow, yellow or light orange. Stipe context sometimes changes color to blue, greenish blue, reddish or brownish. Stipe equal to clavate, solid, with or without glandular dots, glandular dots whitish, yellow, reddish, brown, or cinnamon brown when young, becoming cinnamon brown or brown with age. With or without annulus, annulus often superior, white, pinkish or brownish, persistent or evanescent, fibrillose, cottony, gelatinous, glutinous or membranous. Mycelia often white or pinkish, sometimes changing color to pinkish or red when bruised. Spore print olive, brown, cinnamon brown or olive brown.</p><p>Basidiospores smooth, oblong and inequilateral, hyaline yellow to ochraceous brown in KOH, usually 7–11 μm. Basidia 4 - spored, clavate, hyaline yellow in KOH. Cystidia abundant, typically in fascicules, large, up to 100 μm, with brown content and surrounded by brown amorphous material in KOH, some species lack caulocystidia. Pileipellis a layer of gelatinous hyphae, with yellowish hyaline content in KOH; some species with a layer of scales that are smooth and light ochraceous in KOH. Clamp connections absent.</p><p>Habitat.</p><p>Scattered to gregarious, ectomycorrizal with Pinus as primary the host and Larix as the secondary host.</p><p>Known species.</p><p>Listed in section Suillus and Diversipedes .</p><p>Notes.</p><p>Lofgren et al. (2021) and Zhang et al. (2022) resolved the subgenera within genus Suillus using multigene phylogenies. This subgenus is strongly supported as monophyletic by phylogenies of the supermatrices, TEFα- 1 and RPB 2 genes. This subgenus is the most species rich in genus Suillus, containing more species than all other subgenera combined.</p><p>Morphological features alone are not very informative for distinguishing species in this subgenus from others. Glandular dots, or caulocystidia visible under the microscope, are exclusive for this subgenus. But not all species in the subgenus have glandular dots. Partial veils may or may not be present. Pilei vary from glabrous to scaly, dry to glutinous and white to a large variety of colors. Micromorphological features are even less effective in delimiting the Suillus subgenera. Host association with Pinus stands out as the key to differentiate species in this subgenus from those in the other subgenera.</p></div>	https://treatment.plazi.org/id/F61F8436B534514E9BD0E9CB2E00B0EC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
36E11F4BF27555F28AFC33EDDE7C9DA5.text	36E11F4BF27555F28AFC33EDDE7C9DA5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus aenoplacidus R. Zhang, X. F. Shi, G. M. Mueller and P. G. Liu 2025	<div><p>Suillus aenoplacidus R. Zhang, X. F. Shi, G. M. Mueller and P. G. Liu sp. nov.</p><p>Figs 4, 5</p><p>Etymology.</p><p>“ aeno -” indicates the bronze color of the sticky layer of the cap. “- placidus ” refers to its sister species S. placidus .</p><p>Diagnosis.</p><p>Suillus aenoplacidus has the bronze glue covering on the cap when young and a white stipe covered with whitish to reddish brown glandular dots. Suillus aenoplacidus are associated with two-to-three needle pines.</p><p>Typification.</p><p>China: • Yunnan Province, Dali City, Jian Chuan town, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=99.88894&amp;materialsCitation.latitude=26.53828" title="Search Plazi for locations around (long 99.88894/lat 26.53828)">Qian Shi Mountain</a> (26°32'17.81"N, 99°53'20.18"E, alt. 2385 m), 07 September 2009, Xiaofei Shi, Shi 272 (holotype, HKAS 71785) .</p><p>GenBank.</p><p>ITS = KU 721265; LSU = KU 721386; TEFα- 1 = KU 721566</p><p>Morphology.</p><p>Pileus develops from convex to plane, margin incurved when young, wavy at maturity, 2–10 cm diameter, surface viscid to glutinous, glabrous, cap covered with pallid grey (6 B 2) to bronze brown (5 B 4, 5 B 5, 5 C 5) glue over the white background, cap background color becoming yellow (4 A 4) at maturity. Hymenophore adnate to subdecurrent, pale buff (6 B 2) when young, beaded with pinkish buff (6 B 3) droplets, turning yellowish (4 A 5) at maturity. Does not change color when bruised. Pores 1 to 2 per mm, angular, compound. Pore surface covered with glandular dots. Tubes shallow, 2–5 mm, whitish yellow (4 A 2) when young, becoming yellow (4 A 6) with age. Stipe 5.0–10.0 × 0.8–1.5 cm, equal to slightly bulbous at base, solid, no veil, stipe cuticle white, covered with glandular dots, dots are whitish when young becoming brownish red (6 C 6, 6 C 7, 6 D 7), big and dense, almost connected to form streaks. Mycelia white. Context in pileus white to yellowish, 5–15 mm, stipe context concolorous, unchanging. Spore print light cinnamon brown (6 C 2, 6 C 3). Odor and taste indistinctive.</p><p>Basidiospores [40 / 2 / 2] (6.5) 7–8.5 × 3.0–4.0 μm, Q = (2.00) 2.14–2.50, Q sd = 2.31 ± 0.14, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, hyaline yellow or brown in KOH, tawny ochraceous in Melzer’s. Basidia 4 - spored, clavate, bulbous, 15.0–28.0 × 5.5–8.0 μm, brown in KOH, tawny ochraceous in Melzer’s regent. Hymenophoral trama divergent, wrinkled, thin-walled, hyaline and mostly 2–7 μm, up to 11 μm. Pleuro- and cheilocystidia in fascicles, abundant, clavate, up to 100 μm long, content brown or hyaline, surrounded by brown amorphous material in KOH. Pileipellis densely encrusted by ochraceous granules, hyphae densely distributed as if interwoven, mostly 3–10 μm, up to 15 μm wide. Stipitipellis covered by patches of brown amorphous pigments, composed of interwoven hyphae about 3–15 μm, up to 23 μm wide. Caulocystidia abundant, covering the stipe, morphologically similar with pleuro- and cheilocystidia, basal part surrounded by brown pigments, up to 100 μm. Context trama hyaline, smooth, thin-walled, interwoven, similar in pileus and stipe, mostly 3–30 μm, up to 40 μm wide at the stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Solitary to scattered, in association with Pinus armandii and Pinus koraiensis .</p><p>Known distribution.</p><p>Currently known from southwestern and northeastern China and Japan.</p><p>Specimens examined.</p><p>China: • Yunnan Province, Dali City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.205795&amp;materialsCitation.latitude=25.5687" title="Search Plazi for locations around (long 100.205795/lat 25.5687)">Miaopu hill</a> (25°34'7.32"N, 100°12'20.87"E, alt. 2208 m), 20 August 2012, Rui Zhang RZ 08201204 (HKAS 91431) ; China: • Tibetan Autonomous Prefecture, Deqin town, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=99.038795&amp;materialsCitation.latitude=28.495014" title="Search Plazi for locations around (long 99.038795/lat 28.495014)">valley of Bai Ma Snow Mountain</a> (28°29'42.05"N, 99°02'19.67"E, alt. 4198 m), 12 October 2011, Xiaofei Shi, Shi 1026 (HKAS 71999) ; China: • Guizhou Province, Bijie, Hezhang town, Shui Tang plantation, 18 September 2008, Xiaofei Shi, Shi 193 (HKAS 71752) ; China: • Guizhou Province, Bijie, Rhododendron forest in Bai Mu , 10 August 2009, Xiaofei Shi, Shi 195 (HKAS 63319) ; China: • Heilongjiang Province, Yichun City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=129.21089&amp;materialsCitation.latitude=48.235733" title="Search Plazi for locations around (long 129.21089/lat 48.235733)">Wuying National Forest Park</a> (48°14'08.64"N, 129°12'39.22"E, alt. 350 m), 17 August 2010, Xiaofei Shi, Shi 555 (HKAS 63151) ; China: • Tibetan Autonomous Prefecture, Lin Zhi, 25 km away from the military base (29°45.566"N, 94°44.050"E, alt. 3150 m), 26 June 2009, A. W. Wilson Aww 471 .</p><p>Notes.</p><p>This species is morphologically similar to North American Suillus weaverae and S. placidus . Geographical ranges and hosts are the keys to distinguish these three species. This species has often been morphologically confused with the Suillus granulatus complex. But Suillus aenoplacidus is distinguished by association with five-needle pines ( Pinus subg. Strobus), whereas S. flavopunctipes, S. granulatus, and S. longiflavopunctipes are associated with two-to-three needle pines ( Pinus subg. Pinus). In addition, even though morphological features of the caps are similar, stipe features are very distinct. Suillus aenoplacidus has a white stipe covered with whitish to reddish brown glandular dots; S. flavopunctipes and S. longiflavopunctipes have yellowish stipes, especially close to apex, and their glandular dots develop from yellow to brown. A potential new species, sister to S. aenoplacidus, from Japan has been identified in the ITS phylogeny (Suppl. material 1: fig. S 2).</p></div>	https://treatment.plazi.org/id/36E11F4BF27555F28AFC33EDDE7C9DA5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
894A8233D7235706AB7A2FD32041894C.text	894A8233D7235706AB7A2FD32041894C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus aestivoluteus R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus aestivoluteus R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sp. nov.</p><p>Figs 10, 11</p><p>Etymology.</p><p>“aestivo-” means summer. This species has very thin and sheer partial veil as a summer version of the European S. luteus, which has thick and wooly partial veils.</p><p>Diagnosis.</p><p>Morphologically similar to S. luteus but differentiated from it by having thick, persistent and woolly textured annlus or ring, partial veil underneath the ring covers the basal part of the stipe. Glandular dots on lower part of the stipe are covered by the partial veil and could not be seen.</p><p>Typification.</p><p>China: • Yunnan Province, Lijiang City, Yulong Snow Mountain, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.235985&amp;materialsCitation.latitude=26.774603" title="Search Plazi for locations around (long 100.235985/lat 26.774603)">Gan Hai Zi</a> (26°46'28.57"N, 100°14'09.55"E, alt. 2611 m), 16 September 2010, Xiaofei Shi, Shi 690 (holotype, HKAS 63212) .</p><p>Morphology.</p><p>Pileus develops from obtuse to convex or flat, 3–12 cm diameter, surface viscid to glutinous, glabrous, background color pallid yellow (4 A 2) to buff brown (5 C 4), with brownish or cinnamon brown (5 C 5, 5 D 5,5E 7) color streaks, not fibrils, underneath the glue. Color streaks are denser and darker in cap center. Pileus cuticle easily separable. Appendiculated with white and membranous partial veils that fall off with age. Hymenophore adnate to subdecurrent, younger ones pallid yellow (3 A 3), turn to dark yellow (4 B 4) with age. Younger ones covered all over by white and membranous partial veils. Do not change color when bruised. Pores 2–3 per mm, small and round. Tubes 3–7 mm deep, concolorous with pore surface. Stipe 2.0–8 × 0.6–2.0 cm, equal to slightly bulbous in base, white or with yellow tinge in apex, solid, glandular dots all over the stipe, color dark brown (5 F 7), become smaller and less towards the base. Annulated with white and membranous ring. Stipe below the annulus covered with sheer remnants of the partial veil, beneath which glandular dots are visible. Annuli turn to buff (5 B 2) or even brownish (5 C 3, 5 D 5), often disappear when old. Mycelia white. Context white to yellowish, 6–15 mm deep in pileus. Stipe context concolorous. Do not change color when exposed. Spore print cinnamon brown (5 E 7, 5 F 7). Odor and taste indistinct.</p><p>Basidiospores [80 / 2 / 2] 7.0–9.0 (9.5) × 3.0–3.5 (4) μm, Q = (2.00) 2.14–2.71 (2.83), Q sd = 2.43 ± 0.21, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, hyaline yellow or brown in KOH, tawny yellow in Melzer’s. Basidia 4 - spored, clavate, bulbous top, 20.0–22.0 × 5.5–7.0 μm, hyaline yellow or brown in KOH, tawny yellow in Melzer’s. Hymenophoral trama divergent, wrinkled, thin-walled, hyaline and mostly 5–10 μm, up to 15 μm. Pleuro- and Cheilocystidia in fascicles, abundant, clavate, content brown or hyaline, surrounded by brown amorphous materials in KOH, up to 70 μm long. Caulocystidia abundant in all part of the stipe, morphologically similar with pleuro- and cheilocystidia, encrusted with too much brown pigments, up to 100 μm long. Pileipellis an ixocutis, hyphae hyaline, thin-walled and encrusted with ochraceous granules, scattered in glue, most 3–7 μm, up to 13 μm wide. Stipitipellis mostly composed of interwoven hyphae, covered by brown amorphogous pigments, about 3–9 μm wide. Context trama hyaline, smooth, thin-walled, interwoven, similar for pileus and stipe, mostly 3–30 μm, up to 50 μm wide at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Usually gregarious, in association with Pinus yunnanensis .</p><p>Known distribution.</p><p>Currently only known from southwestern China within the range of Pinus yunnanensis .</p><p>Specimens examined.</p><p>China: • Yunnan Province, Diqing Tibetan Autonomous Prefecture, Shangri-la Town, Xin Sheng Qiao forest park (alt. 3317 m), 17 September 2010, Xiaofei Shi, Shi 699 (HKAS 63204) ; China: • Yunnan Province, Heqing Xian, Song Gui Town (alt. 1600 m), 10 October 2011, Xiaofei Shi, Shi 1018 (HKAS 71991) ; China: • Yunnan Province, Weixi Town, Tacheng Xiang, Bazhu village (alt. 1900 m), 15 October 2011, Xiaofei Shi, Shi 1032 (HKAS 72004) ; China: • Sichuan Province, Xicang City, Puge Town, Luoji Mountain, outside Xianren cave (alt. 2000 m), 12 September 2010, Xiaofei Shi, Shi 673 (HKAS 63183) .</p><p>GenBank.</p><p>ITS = KU 721214; LSU = KU 721393; TEFα- 1 = KU 721602; RPB 1 = KU 852247; RPB 2 = KU 852310.</p><p>Notes.</p><p>Sister to this new species, Suillus luteus grows in Europe with Pinus sylvestris and has been introduced to North America along with the host tree. Suillus luteus collections from northeastern China associate with P. sylvestris var. sylvestriformis and it is the same European Suillus luteus species.</p></div>	https://treatment.plazi.org/id/894A8233D7235706AB7A2FD32041894C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
4568B1D0823F580A9B68B64C725D18E2.text	4568B1D0823F580A9B68B64C725D18E2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus boletoluteus R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus boletoluteus R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu . sp. nov.</p><p>Figs 14, 15</p><p>Etymology.</p><p>The species resembles Suillus luteus and “boleti-” indicates its smooth and regular hymenium like species in Boletinus .</p><p>Diagnosis.</p><p>Suillus boletoluteus has smooth and regular hymenium. The pores and stipes usually change color to greenish blue when cut. This species is in association with Pinus subg. Strobus in southwestern China and subg. Pinus in northeastern China.</p><p>Typification.</p><p>China: • Inner Mongolia, Hulun Buir, Erguna, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=120.75573&amp;materialsCitation.latitude=51.38789" title="Search Plazi for locations around (long 120.75573/lat 51.38789)">Moerdaoga National Forest Park</a> (51°23'16.40"N, 120°45'20.64"E, alt. 1000 m), 27 August 2010, Xiaofei Shi, Shi 633 (holotype, HKAS 63244) .</p><p>GenBank.</p><p>ITS = KU 721499; LSU = KU 721374; TEFα- 1 = KU 721702</p><p>Morphology.</p><p>Pileus develops from convex to plane or recurved, margin wavy at maturity, 3–9 cm diameter, surface viscid to glutinous, glabrous, background color yellowish buff (4 B 4), with brownish color streaks (6 D 5,6E 5) underneath the gluten. Younger ones white cap with buff brownish glue (5 C 4). Appendiculated with white and membranous partial veils that fall off with age. Hymenophore adnate to narrowly adnate, yellow (3 B 7). Pores 1–2 per mm, angular, compound. Pore surface covered with brownish cinnamon glandular dots (6 F 4–6 F 7). Change color to greenish blue (24 A 4) when cut or bruised. Tubes 4–7 mm deep. Stipe 6–9.5 × 0.8–1.2 cm, equal or slightly tapering towards apex, solid, cuticle background color greyish white, covered all over with glandular dots that are big and dense in streaks, dots are buff brown (5 B 3, 5 B 4), or cinnamon brown (6 C 4, 6 C 5) in younger ones. A superior gelatinous veil present, white and membranous, fall off at maturity or leave some brownish (6 C 4–6 D 4) membranous traces on the stipe. Context white to yellowish. Sometimes pileus context turn light blue when cut. Spore print brown. Odor and taste indistinctive.</p><p>Basidiospores [40 / 2 / 2] 9.5–12.0 (13.5) × 3.5–4.0 μm, Q = (2.38) 2.50–3.43 (3.71), Q sd = 2.81 ± 0.34, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, brown or ochraceous in KOH, tawny yellow in Melzer’s. Basidia 4 - spored, clavate, bulbous top, 20.0–26.0 × 7.5–8.5 μm, hyaline yellow or brown in KOH, tawny yellow in Melzer’s. Hymenophoral trama divergent, wrinkled or smooth, thin-walled, hyaline and mostly 3–8 μm wide. Pleuro- and Cheilocystidia in fascicles, abundant, clavate, content brown or hyaline, surrounded by brown amorphous materials in KOH, up to 70 μm long. Caulocystidia abundant in all part of the stipe, morphologically similar with pleuro- and cheilocystidia, fascicle base encrusted by profuse brown pigments in KOH, up to 130 μm long. Pileipellis a gelatinous layer with some hyphae encrusted by ochraceous granules, some hyphae are not encrusted, most 2–8 μm, up to 11 μm wide. Stipitipellis mostly composed of interwoven hyphae, covered by brown amorphogous pigments, about 3–10 μm wide. Context trama hyaline, smooth, thin-walled, interwoven, similar for pileus and stipe, mostly 3–30 μm, up to 40 μm wide at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Solitary to scattered, in association with Pinus sylvestris var. mongolica and Pinus armandii .</p><p>Known distribution.</p><p>Currently only known from northeastern and southwestern China.</p><p>Specimens examined.</p><p>China: • Yunnan Province, Jianchuan Town, Lao Jun Mountain (alt. 3400 m), 8 September 2009, Xiaofei Shi, Shi 284 (HKAS 71797) • ibid 12 September 2009, Xiaofei Shi, Shi 289 (HKAS 71802) .</p><p>Notes.</p><p>This species is sister to North American Suillus acidus . The two sibling species are morphologically very similar. It is interesting that Suillus boletoluteus is in association with Pinus subg. Strobus in southwestern China and subg. Pinus in northeastern China. Host associations of the new species should be further confirmed. In addition, it is possible that S. boletoluteus contains cryptic species as indicated by the long branches in the TEFα- 1, RPB 1 and RPB 2 phylogenies.</p></div>	https://treatment.plazi.org/id/4568B1D0823F580A9B68B64C725D18E2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
313D6DA99F1850FEB90D4B54F8342CA5.text	313D6DA99F1850FEB90D4B54F8342CA5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus cinerescens R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus cinerescens R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu . sp. nov.</p><p>Figs 16, 17</p><p>Etymology.</p><p>The epithet indicates the grey color of the pileus.</p><p>Typification.</p><p>China: • Shaanxi Province, Baoji City, Mei Xian, Yingtou Town, Hao Ping Dali village (alt. 1300 m), 4 September 2010, Xiaofei Shi, Shi 664 (holotype, HKAS 63243) .</p><p>Diagnosis.</p><p>Suillus cinerescens has grey pileus, is in association with Pinus armandii in central and southwestern China.</p><p>GenBank.</p><p>ITS = KU 721159; LSU = KU 721317; TEFα- 1 = KU 721740; RPB 1 = KU 852278.</p><p>Morphology.</p><p>Pileus develops from hemispherical to convex or plane, 4–9 cm diameter, surface viscid to glutinous, glabrous, background color yellowish brown (4 B 4), younger ones with dark olive glue (3 C 4, 3 C 5), discoloring to greyish (3 B 3) when old. Hymenophore adnate to narrowly adnate, younger ones dull cinnamon (5 C 4, 5 C 5), turn to olive yellow (3 B 6, 3 C 6) with age. Do not change color when bruised. Pores 1 per mm, angular, compound. Tubes 4–9 mm deep, concolorous with pores. Stipe 6–10 × 0.9–2 cm, equal or tapering towards apex, solid, no ring, cuticle color yellowish white (3 A 3), covered all over with reddish brown (4 A 6, 4 A 7) glandular dots. Mycelia white, turn to red (6 A 3, 7 A 3) when bruised. Context white to yellowish. Do not change color when exposed. Spore print olive brown. Odor and taste indistinctive.</p><p>Basidiospores [40 / 2 / 2] (8.5) 9.0–10 × (3.5) 4.0–4.5 μm, Q = (2.22) 2.25–2.50, Q sd = 2.4 ± 0.13, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, brown or uncommonly hyaline in KOH, dark ochraceous in Melzer’s. Basidia 4 - spored, clavate, bulbous top, 20.0–25.0 × 7.0–8.0 μm, contain brown pigments or uncommonly hyaline in KOH. Hymenophoral trama divergent, wrinkled, thin-walled, hyaline and mostly 5–11 μm, up to 15 μm. Pleuro- and cheilocystidia in fascicles, abundant, clavate, up to 70 μm long, content brown or hyaline, surrounded by brown amorphous materials in KOH. Caulocystidia abundant, morphologically similar with pleuro- and cheilocystidia, in fascicles with over 10 caulocystidia, surrounded by brown pigments, up to 100 μm. Pileipellis encrusted by fine ochraceous granules, hyphae scattered in yellowish glue in KOH, most 3–7 μm, up to 11 μm wide. Stipitipellis covered by profuse brown amorphous pigments, composed of interwoven hyphae, about 3–9 μm wide. Context trama hyaline, smooth, thin-walled, interwoven, similar in pileus and stipe, mostly 5–50 μm, up to 110 μm wide at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Usually gregarious, in association with Pinus armandii .</p><p>Known distribution.</p><p>Currently known from central and southwestern China.</p><p>Specimens examined.</p><p>China: • Hubei Province, Shen Nong Jia Forest, Honghua Duo town (alt. 1600 m), 31 July 2011, Xiaofei Shi, Shi 763 (HKAS 71893) ; China: • Yunnan Province, Lijiang City, Xuesong village (alt. 2700 m), 27 August 2009, Gang Wu, GangWu 155 (HKAS 57687) ; China: • Heilongjiang Province, Yichun City, Wuying National Forest Park (alt. 400 m), 17 August 2010, Xiaofei Shi, Shi 558 (HKAS 63234) ; China: • Heilongjiang Province, Da Xing Anling, Huzhong Town, Hua road (alt. 1000 m), associated with Pinus pumila, 21 August 2010, Xiaofei Shi, Shi 588 (HKAS 63225) .</p><p>Notes.</p><p>Two collections (HKAS 63234 and 63225) are excluded from the new species description because they are strongly indicated as different species by phylogenetic, morphological and ecological evidence. The collection “ HKAS 63234 ” from northeastern China has strong bluing reaction when the hymenium is bruised and it associates with Pinus koraiensis . Another collection “ HKAS 63225 ” has more reddish cinnamon in pileus color, and it associates with Pinus pumila . However, more collections are needed to confirm these observations and to support the cryptic species. The Suillus cinerescens collections associated with Pinus armandii are morphologically similar with closely related species S. plorans from Europe.</p></div>	https://treatment.plazi.org/id/313D6DA99F1850FEB90D4B54F8342CA5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
E9D9419D422658778C91FF91BF6B6D26.text	E9D9419D422658778C91FF91BF6B6D26.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus flavopunctipes R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus flavopunctipes R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sp. nov.</p><p>Figs 6, 7</p><p>Etymology.</p><p>The epithet refers to the yellow (flavo-) glandular dots (- punctipes) found on the stipe in young sporophores.</p><p>Diagnosis.</p><p>Suillus flavopunctipes is in the Suillus granulatus morphological complex. This species can easily be differentiated from S. granulatus and S. longiflavopunctipes by its host association with Pinus yunnanensis and P. massoniana in southern China.</p><p>Typification.</p><p>China: • Yunnan Province, Dali City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.205795&amp;materialsCitation.latitude=25.5687" title="Search Plazi for locations around (long 100.205795/lat 25.5687)">Miao-pu hill</a> (25°34'07.32"N, 100°12'20.87"E, alt. 2208 m), 20 August 2012, Rui Zhang RZ 08201207 (holotype HKAS 91433) .</p><p>Morphology.</p><p>Pileus develops from hemispherical to convex or broadly convex, 1–10 cm diameter, surface viscid to glutinous in young or when moist, glabrous, all white or with a brown glutinous layer when young, developing brown (6 D 5 to 6 F 7) patches or streaks above the yellow background (4 A 5, 4 A 6) due to deposition of basidiospores from overlaying sporophores which are captured by the glutinous layer which becomes dried out. Hymenophore adnate to subdecurrent, yellow (3 A 5), surface covered with yellowish milky droplets when young, dotted with brownish dots in age. Does not change color when bruised. Tube mouths small, 1 to 3 per mm, angular. Tubes 0.5–5 mm deep, concolorous with pore surface. Stipe 1.5–6 × 0.5–2.0 cm, cylindrical or tapering downwards, solid, lacking annulus, background color pallid when young, becoming yellowish in apex. Covered with connected glandular dots that form streaks, glandular dots change from yellow (3 A 4) to cinnamon brown (6 E 5–6 E 7) at maturity. Context yellowish white to yellow (3 A 3, 3 A 4) in both pileus and stipe. Does not change color when exposed. Spore print dark cinnamon brown (6 F 5–6 F 7), usually in mass. Odor and taste pleasant smell, taste indistinctive.</p><p>Basidiospores [40 / 2 / 2] 8.0–9.5 × 3.0–4.0 μm, Q = (2.00) 2.29–2.83 (3.17), Q sd = 2.49 ± 0.24, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, hyaline yellow or brown in KOH, tawny ochraceous in Melzer’s. Basidia 4 - spored, clavate, bulbous, 15.0–20.0 × 5.0–6.0 μm, hyaline yellow in KOH, tawny ochraceous in Melzer’s. Hymenophoral trama divergent, wrinkled, thin-walled, hyaline and 5–11 (- 16) μm. Pleuro- and cheilocystidia in fascicles, abundant, clavate, up to 70 μm long, contents brown or hyaline, surrounded by brown amorphous material in KOH. Pileipellis encrusted by tiny hyaline or ochraceous granules, hyphae densely distributed as if interwoven in yellowish glue in KOH, 3–7 (- 10) μm. Stipitipellis covered by patches of brown amorphous pigment, composed of interwoven hyphae about 3–9 μm wide. Caulocystidia abundant over the stipe, morphologically similar with pleuro- and cheilocystidia, base surrounded by brown pigment, up to 100 μm. Context trama hyaline, smooth, thin-walled, interwoven, similar in pileus and stipe, mostly 3–30 μm, up to 40 μm wide at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Gregarious, in association with Pinus yunnanensis and P. massoniana .</p><p>Known distribution.</p><p>Mainly distributed in southern China, extending north to Henan Province along with P. massoniana .</p><p>Specimens examined.</p><p>China: • Yunnan Province, Baoshan City, Long-yang, Banqiao town, Qingshui village (alt. 1800 m), 20 August 2009, Gang Wu, GangWu 98 (HKAS 57630) ; China: • Guangdong Province, Lecang Xian, Jiufeng town, Shi Er Du Shui conservative region, 15 September 2011, Xiaofei Shi, Shi 961 (HKAS 71974) ; China: • Henan Province, Nanyang City, Nei Xiang County, Qili Ping pine forest (alt. 720 m), 7 August 2010, Xiaofei Shi, Shi 440 (HKAS 63242) ; China: • Hubei Province, Shiyan City, Fang Xian, Xi Song town, Xi Ping village (alt. 1200 m), 31 July 2011, Xiaofei Shi, Shi 762 (HKAS 71892) ; China: • Fujian Province, Wuyi Shan City, Long Jing Mountain (alt. 300 m), 4 September 2011, Xiaofei Shi, Shi 883 (HKAS 71943) .</p><p>GenBank.</p><p>ITS = KX 342861; LSU = KU 721336; TEFα- 1 = KU 721624; RPB 1 = KU 852282; RPB 2 = KU 852298.</p><p>Notes.</p><p>See above for comparisons of this species with Suillus aenoplacidus . Within the Suillus granulatus complex, this species can easily be differentiated from S. granulatus and S. longiflavopunctipes by its host association and geographic range. Suillus flavopunctipes is a southern China species associated with Pinus yunnanensis and P. massoniana . Morphological characters, including color variations and stipe length, are not stable across large collections and can be affected by growing conditions. For molecular studies, the ITS phylogeny alone can resolve the three species in the Suillus granulatus complex with high support.</p></div>	https://treatment.plazi.org/id/E9D9419D422658778C91FF91BF6B6D26	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
CD312F3C8D9D5A4E8019D3347CD36CEB.text	CD312F3C8D9D5A4E8019D3347CD36CEB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus Gray	<div><p>Suillus Gray, Nat. Arr. Brit. Pl. (London) 1: 646 (1821)</p><p>Type.</p><p>Suillus luteus (L.) Roussel 1796</p><p>Synonyms:</p><p>Pinuzza Gray, Nat. Arr. Brit. Pl. (London) 1: 646 (1821). Type: Pinuzza flava Gray. 1821</p><p>Cricunopus P. Karst., Revue mycol., Toulouse 3 (no. 9): 16 (1881). Type: Cricunopus luteus (L.) P. Karst. 1881</p><p>Rostkovites P. Karst., Revue mycol., Toulouse 3 (no. 9): 16 (1881). Type: Rostkovites granulatus (L.) P. Karst. 1881</p><p>Euryporus Quél., Enchir. fung. (Paris): 163 (1886). Type: Euryporus cavipes (Klotzsch) Quél. 1886</p><p>Viscipellis (Fr.) Quél., Enchir. fung. (Paris): 155 (1886). Type: Viscipellis lutea (L.) Quél. 1886</p><p>Peplopus (Quél.) Quél. ex Moug. &amp; Ferry, in Louis, Départ. Vosges, Fl. Vosges, Champ.: 476 [108 repr.] (1887). Type: Viscipellis subgen. Peplopus Quél. 1886</p><p>Ixocomus Quél., Fl. mycol. France (Paris): 411 (1888). Type: Ixocomus luteus (L.) Quél. 1888</p><p>Boletopsis Henn., in Engler &amp; Prantl, Nat. Pflanzenfam., Teil. I (Leipzig) 1: 194 (1898) [1900]. Type: Boletopsis lutea (L.) Henn. 1898</p><p>Fuscoboletinus Pomerl. &amp; A. H. Sm., Brittonia 14: 157 (1962). Type: Fuscoboletinus sinuspaulianus Pomerl. &amp; A. H. Sm. 1962</p><p>Mariaella Šutara, Česká Mykol. 41 (2): 73 (1987). Type: Mariaella bovina (L.) Šutara 1987</p><p>Gastrosuillus Thiers, Mem. N. Y. bot. Gdn 49: 357 (1989). Type: Gastrosuillus suilloides (Thiers) Thiers 1989</p></div>	https://treatment.plazi.org/id/CD312F3C8D9D5A4E8019D3347CD36CEB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
C55D8A0BD5FB5B0AB2FB69A8E27124F3.text	C55D8A0BD5FB5B0AB2FB69A8E27124F3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus longiflavopunctipes R. Zhang, X. F. Shi, G. M. Mueller and P. G. Liu 2025	<div><p>Suillus longiflavopunctipes R. Zhang, X. F. Shi, G. M. Mueller and P. G. Liu sp. nov.</p><p>Figs 8, 9</p><p>Etymology.</p><p>“ longi -” means that the stipe of young sporophore is comparatively longer than that of S. flavopunctipes .</p><p>Diagnosis.</p><p>Suillus longiflavopunctipes young sporocarps have comparatively longer stipes than other similar species in the S. granulatus morphological complex. This species is associated with Pinus densiflora and P. thunbergii, and one collection is with P. sylvestris var. sylvestriformis .</p><p>Typification.</p><p>China: • Shandong Province, Linyi City, Pingyi town, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=117.92011&amp;materialsCitation.latitude=35.539482" title="Search Plazi for locations around (long 117.92011/lat 35.539482)">Dianzi Plantation</a> (35°32'22.14"N, 117°55'12.42"E, alt. 250 m), 24 August 2011, Xiaofei Shi, Shi 828 (holotype, HKAS 71922) .</p><p>GenBank.</p><p>ITS = KU 721235; LSU = KU 721340; RPB 1 = KU 852195; RPB 2 = KU 852296.</p><p>Morphology.</p><p>Pileus develops from hemispherical to convex or broadly convex, 2–9 cm diameter, surface viscid to glutinous, glabrous, younger ones all white, or the glutinous layer in cinnamon brown color patches (5 B 4, 5 C 5). Color reddish brown without color patches in age (6 D 5–6 F 5). Hymenophore adnate to subdecurrent, yellow (3 A 5), with milky white droplets when young, dotted with brownish dots when age. Do not change color when bruised. Pores 1 to 2 per mm, smaller towards margin, angular. Tubes 2–3 mm deep, concolorous with pore surface. Stipe 5–7 × 0.8–1.5 cm, cylindrical or tapering downwards, solid, no annulus, background color pallid in young, become yellowish, darker yellow in apex when age. Covered all over with big and almost linked glandular dots, glandular dots change from yellow (3 A 4) to vinaceous brown (5 C 4–5 E 4) when age. Context yellowish white to yellow (3 A 3, 3 A 4) in pileus and stipe. Do not change color when exposed. Spore print cinnamon brown (5 B 4, 5 C 5). Odor and taste pleasant smell, taste indistinctive.</p><p>Basidiospores [80 / 2 / 2] (8.0) 8.5–10.0 × 3.5–4.0 μm, Q = 2.25–2.57 (2.71), Q sd = 2.38 ± 0.12, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, hyaline yellow or brown in KOH, tawny ochraceous in Melzer’s. Basidia 4 - spored, clavate, bulbous at top, 22.0–27.0 × 6.0–7.0 μm, yellowish in KOH, tawny ochraceous in Melzer’s. Hymenophoral trama divergent, wrinkled, thin-walled, hyaline and mostly 5–11 μm, up to 16 μm. Pleuro - and cheilo cystidia in fascicles, abundant, clavate, up to 70 μm long, content brown or hyaline, surrounded by brown amorphous materials in KOH. Caulocystidia abundant all over the stipe, morphologically similar with pleuro- and cheilocystidia, basal surrounded by brown pigments, up to 100 μm. Pileipellis encrusted by tiny hyaline or ochraceous granules, hyphae densely distributed as if interwoven in yellowish glue in KOH, most 3–7 μm, up to 10 μm wide. Stipitipellis covered by profuse brown amorphous pigments, composed of interwoven hyphae, about 3–9 μm wide, most contain brown pigments. Context trama hyaline, smooth, thin-walled, interwoven, similar in pileus and stipe, mostly 3–30 μm, up to 40 μm wide at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Solitary to scattered, in association with Pinus densiflora and P. thunbergii, and one collection is with P. sylvestris var. sylvestriformis .</p><p>Known distribution.</p><p>Natural range is in northeastern China, Korea and Japan.</p><p>Specimens examined.</p><p>China: • Jilin Province, Antu Town, Changbai Mountain, Junshi Bu yard (alt. 748 m), 7 August 2010, Xiaofei Shi, Shi 445 (HKAS 63209) ; China: • Shandong Province, Qingdao City, Lao Mountain (alt. 300 m), 18 August 2011, Xiaofei Shi, Shi 812 ; China: • Shandong Province, Linqu town, Jiushan village, Black pine forest park (alt. 200 m), 23 August 2011, Xiaofei Shi, Shi 824 (HKAS 71918) ; China: • Shandong Province, Linyi City, Pingyi town, Dianzi plantation (alt. 450 m), 24 August 2011, Xiaofei Shi, Shi 829 (HKAS 71923) ; China: • Shandong Province, Linyi City, Pingyi town, Dianzi plantation (alt. 450 m), 24 August 2011, Xiaofei Shi, Shi 830 (HKAS 71924) ; China: • Jiansu Province, Lianyungang City, Huaguo Mountain (alt. 100 m), 27 August 2011, Xiaofei Shi, Shi 837 (HKAS 71925) ; China: • Jiangsu Province, Lianyungang City, Huaguo mountain, 27 August 2011, Xiaofei Shi, Shi 838 (HKAS 71926) .</p><p>Notes.</p><p>Differences of this species with Suillus aenoplacidus and S. flavopunctipes are in above commentaries. But it remains confusing for the delimitations of Suillus longiflavopunctipes and S. granulatus, the latter distributes from Europe to northeastern China. The two species have overlapped geographic ranges and one shared host P. sylvestris var. sylvestriformis . Though S. granulatus sensu stricto is not found growing with Pinus densiflora and P. thunbergii, further studies are required to confirm host associations of the two species. Morphological identifications are not easy to apply for the S. granulatus complex, but molecular phylogenies, even ITS phylogeny alone, can separate these species.</p></div>	https://treatment.plazi.org/id/C55D8A0BD5FB5B0AB2FB69A8E27124F3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
2099BAD0650E528CB94F7573A44BDE52.text	2099BAD0650E528CB94F7573A44BDE52.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus minusculus R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus minusculus R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sp. nov.</p><p>Figs 18, 19</p><p>Etymology.</p><p>The epithet refers to the small size of the species.</p><p>Diagnosis.</p><p>The diameter of the pileus is 3–4.5 cm and it is among the smallest of known Suillus species.</p><p>Typification.</p><p>China: • Guangdong Province, Ruyuan, Shaoguan, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=113.02701&amp;materialsCitation.latitude=24.89725" title="Search Plazi for locations around (long 113.02701/lat 24.89725)">Nanling National Forest Park</a> (24°53'50.10"N, 113°01'37.22"E, alt. 1200 m), 18 September 2015, Bo Li, Libo 113 (holotype, HKAS 89874) .</p><p>GenBank.</p><p>ITS = KU 721492; LSU = KY 489974; TEFα- 1 = KU 721706; RPB 1 = KU 852193; RPB 2 = KU 852352.</p><p>Morphology.</p><p>Pileus develops from convex to plane, eventually depressed, 3–4.5 (- 5) cm diameter, surface viscid when moist, background color yellowish brown (4 A 4, 4 B 4), covered with closely appressed dark brown (5 E 7,5E 8). Hymenophore decurrent, yellow (4 A 7, 4 B 7), pores comparatively large, 1 per mm, angular, compound, radially arranged, smaller towards the margin. Tubes 3–5 mm long, concolorous with the pores. Stipe 3.0–4.0 × 0.3–0.5 cm, cylindrical, solid, veil white and membranous, turning blackish when bruised, lost in age. Reticulate above the annulus. Glandular dots abundant, distribute mainly below the annulus, vinaceous brown (6 D 7). Context yellow in pileus and stipe, does not change color. Pileus context thin, no more than 4 mm thick. Spore print reddish brown (6 E 5). Odor and taste indistinctive.</p><p>Basidiospores [80 / 1 / 2] (8.5) 9.0–11.0 × 3.5–4.5 μm, Q = 2.13–2.50 (2.57), Q sd = 2.36 ± 0.13, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, brown or ochraceous in KOH, tawny yellow in Melzer’s. Basidia 4 - spored, clavate, bulbous, 21.0–28.0 × 6.0–8.5 μm, hyaline yellow or brown in KOH, tawny yellow in Melzer’s. Hymenophoral trama divergent, wrinkled, thin-walled, hyaline and mostly 5–8 (- 12) μm. Pleuro- and Cheilocystidia in fascicles, abundant, clavate, contents brown or hyaline, surrounded by brown amorphous material in KOH, up to 80 μm long. Pileipellis outer most a layer of hyphae light ochraceous or hyaline in KOH, smooth, most 3–7 μm; underneath a gelatinous layer with hyphae densely encrusted with ochraceous granules, most 3–7 (- 11) μm wide. Stipitipellis mostly composed of interwoven hyphae, covered by brown amorphogous pigments, about 3–10 μm wide. Caulocystidia abundant along stipe, morphologically similar with pleuro- and cheilocystidia, encrusted with brown pigments in KOH, up to 100 μm long. Context trama hyaline, smooth, thin-walled, interwoven, similar in pileus and stipe, mostly 3–30 μm, up to 40 μm wide at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Scattered, in association with Pinus kwangtungensis .</p><p>Known distribution.</p><p>Currently only known from the Nanling National Forest Park in Guangdong.</p><p>Specimens examined.</p><p>China: • Guangdong Province, Ruyuan, Shaoguan, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=113.02669&amp;materialsCitation.latitude=24.896395" title="Search Plazi for locations around (long 113.02669/lat 24.896395)">Nanling National Forest Park</a> (24°53'47.02"N, 113°01'36.05"E, alt. 1209 m), 18 September 2015, Rui Zhang, Rui 363 (HKAS 90665) ; ibid 17 September 2011, Xiaofei Shi, Shi 979 (HKAS 71980) .</p><p>Notes.</p><p>Pinus kwangtungensis is a rare pine species and forms a large forest only in the Nanling National Forest Park; it seems that S. minusculus is also rare and should be under conservation.</p></div>	https://treatment.plazi.org/id/2099BAD0650E528CB94F7573A44BDE52	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
B49246EFF0E25C73ACA0E6A07AC396EE.text	B49246EFF0E25C73ACA0E6A07AC396EE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus phylolaricinus R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus phylolaricinus R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sp. nov.</p><p>Figs 28, 29</p><p>Etymology.</p><p>“ Laricinus ” indicates that the host of this species is Larix . “ Phylo -” means this species is first discovered and confirmed by molecular phylogeny.</p><p>Typification.</p><p>China: • Yunnan Province, Diqing Tibetan Autonomous Prefecture, Shangri-la, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=99.766365&amp;materialsCitation.latitude=27.578459" title="Search Plazi for locations around (long 99.766365/lat 27.578459)">near Tian-chi</a> (27°34'42.45"N, 99°45'58.92"E, alt. 3321 m), 17 September 2010, Xiaofei Shi, Shi 696 (holotype HKAS 63176) .</p><p>Diagnosis.</p><p>The distinctive feature of S. phylolaricinus is the color change of the context at the stipe apex. When cut, the context of the upper stipe turns to greenish blue immediately.</p><p>GenBank.</p><p>ITS = KU 721438; LSU = KU 663211; TEFα- 1 = KU 721693; RPB 1 = KU 852243; RPB 2 = KU 852332.</p><p>Morphology.</p><p>Pileus develops from convex to applanate, 3–10 cm diameter, surface viscid to glutinous, glabrous, some appressed brown scales (7 D 3–7 D 5) underneath the glue, denser in cap margin, cap usually a mixture of color patches from pale orange (6 A 2, 6 A 3) to orange brown (6 B 3, 6 C 3), younger sporophores brownish gray with olive tinge (4 C 2, 4 B 3). Pellicle is easily separable. Margin appendiculated with veil remnants and incurved slightly. Hymenophore subdecurrent to decurrent, younger ones yellowish (3 A 3, 3 A 4), turning to brownish or orange gray with age (6 B 2, 6 B 3, 6 C 2), changing to darker brownish gray when bruised. Pores 1–2 per mm, angular, compound. Tubes 4–7 mm deep. Stipe 4–10 × 0.6–2 cm, equal to slightly clavate, solid, lacking glandular dots, veil superior dry and floccose, color white turning blackish brown with age, reticulate above the annulus. Context white to yellowish (3 A 2, 3 A 3) in pileus and stipe, more yellowish at stipe apex, upper part of the stipe turning greenish blue (25 A 4, 26 A 3) when exposed, and stipe base more orange color (5 A 4). Spore print dark brown (6 F 3) when moist, dull cinnamon (6 E 6, 6 D 5) when dry. Odor and taste indistinctive.</p><p>Basidiospores [80 / 2 / 2] 7.8–11.5 × 5.0–5.5 μm, Q = (1.90) 2.00–2.30, Q sd = 2.13 ± 0.11, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, hyaline yellow or brown in KOH. Basidia 2 - to 4 - spored, clavate, bulbous top, 17.0–32.0 × 5.0–10.0 μm, hyaline yellow in KOH. Hymenophoral trama not wrinkled, smooth, more or less interwoven, most 3–7 μm, up to 14 μm, thin-walled, hyaline. Pleuro- and Cheilocystidia in fascicles, abundant, clavate or cylindrical, up to 100 μm long, content brown or hyaline, surrounded by brown amorphous materials in KOH. Caulocystidia not seen. Pileipellis a layer of scales on top, hyphae smooth, content ochraceous, mostly 3–8 μm, up to 10 μm. Encrusted hyphae with hyaline granules, 3–8 μm underneath a gelatinous layer. Stipitipellis a somewhat gelatinous layer, encrusted with ochraceous amorphous materials. Context trama hyaline, smooth, thin-walled, interwoven, mostly 6–30 μm, up to 60 μm. Clamp connections absent.</p><p>Habitat.</p><p>Solitary to scattered, in high elevation forests of Larix potaninii .</p><p>Known distribution.</p><p>Currently only known from subalpine region in southwestern China.</p><p>Specimens examined.</p><p>China: • Yunnan Province, Diqing Tibetan Autonomous Prefecture, Ben Zi Lan, valley of Bai Ma Snow Mountain (alt. 4200 m), 6 September 2009, Xiaofei Shi, Shi 260 (HKAS 63132) ; ibid 12 October 2011, Xiaofei Shi, Shi 1024 (HKAS 71997); China: • Yunnan Province, Diqing Tibetan Autonomous Prefecture, Shangri-la, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=99.61779&amp;materialsCitation.latitude=27.880169" title="Search Plazi for locations around (long 99.61779/lat 27.880169)">near Napa</a> (27°52'48.61"N, 99°37'04.03"E, alt. 3500 m), 11 October 2011, Xiaofei Shi, Shi 1022 (HKAS 71995) ; China: • Yunnan Province, Diqing Tibetan Autonomous Prefecture, Deqin Town, 18 August 2008, Yan-chun Li, Yan-chun 1518 (HKAS 56358) ; China: • Tibetan Autonomous Prefecture, by the road about 24 km away from Bomi to Motuo county, 22 June 2009, Bang Feng, Bang-Feng 366 (HKAS 57095) .</p><p>Notes.</p><p>Suillus phylolaricinus, S. grisellus and S. lariciphilus have appressed scales, which is a distinct morphological character in subg. Larigni . The host is another key to identify these species. Hosts of S. lariciphilus are Larix griffithiana and L. himalaica, while Larix laricina is the host for S. grisellus (Pomerleau and Smith 1962; Adamčík et al. 2015). Suillus grisellus reported from China for the first time associated with Larix laricina .</p></div>	https://treatment.plazi.org/id/B49246EFF0E25C73ACA0E6A07AC396EE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
46A6DE8261E756A48F2367F00387926F.text	46A6DE8261E756A48F2367F00387926F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus phylosubaureus R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus phylosubaureus R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sp. nov.</p><p>Figs 20, 21</p><p>Etymology.</p><p>This species is sister to Suillus subaureus and identified first by molecular phylogeny.</p><p>Typification.</p><p>China: • Yunnan Province, Jianchuan City, Lao Jun Mountain (alt. 3400 m), 8 September 2009, Xiaofei Shi, Shi 285 (holotype, HKAS 71798) .</p><p>GenBank.</p><p>ITS = KU 721174; LSU = KU 721369; TEFα- 1 = KU 721696.</p><p>Morphology.</p><p>Pileus develops from hemispherical to plane, margin wavy at maturity, 3–8 cm diameter, surface viscid in moist, appressed blackish brown scales (6 F 6, 6 F 7) underneath the glue, becoming patched and almost glabrous when old. Hymenophore subdecurrent to decurrent, younger ones bright yellow (4 A 7, 4 A 8), turn to brownish yellow with age (4 B 7). Do not change color when bruised. Pores 1–2 per mm, angular, compound, arranged as if inconspicuously lamellate, smaller towards the margin. Tubes 3–6 mm deep, concolorous with pores. Stipe 5–10 × 0.8–1.5 cm, equal to slightly clavate, solid, no veil, white background, yellow at apex, covered with small glandular dots that are yellow (4 A 4, 4 A 5) when young, become brown (6 E 4) when old. Mycelia white, do not change color when bruised. Context yellowish white in pileus, slightly blue around worm holes. In stipe pallid yellow, turn blue (23 A 4) when cut. Spore print unknown. Odor and taste indistinctive.</p><p>Basidiospores [40 / 2 / 2] 8.0–9.0 × 3.5–4.0 μm, Q = 2.25–2.57, Q sd = 2.35 ± 0.11, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, brown or ochraceous in KOH, tawny yellow in Melzer’s. Basidia 4 - spored, clavate, bulbous top, 24.0–28.0 × 7.0–8.5 μm, hyaline yellow or brown in KOH, tawny yellow in Melzer’s. Hymenophoral trama divergent, wrinkled or smooth, thin-walled, hyaline and mostly 3–8 μm wide. Pleuro- and Cheilocystidia in fascicles, abundant, clavate, content brown or hyaline, surrounded by brown amorphous materials in KOH, up to 70 μm long. Caulocystidia abundant in all part of the stipe, morphologically similar with pleuro- and cheilocystidia, fascicle base encrusted by profuse brown pigments in KOH, up to 90 μm long. Pileipellis a layer of scale hyphae, not encrusted, ochraceous, smooth, half of each hypha (4–9 μm) shrink into a thinner strand (1–2 μm). Stipitipellis mostly composed of interwoven hyphae, covered by brown amorphogous pigments, about 3–10 μm wide. Context trama hyaline, smooth, thin-walled, interwoven, similar for pileus and stipe, mostly 3–30 μm, up to 40 μm wide at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Scattered to gregarious, grows in mixed forest and probably associates with Pinus armandii .</p><p>Known distribution.</p><p>Currently only known from subalpine region of Yunnan Province, China.</p><p>Specimens examined.</p><p>China: • Yunnan Province, Jianchuan City, from Li Cha village to Lao Jun Mountain (alt. 3400 m), 2 September 2009, Bang Feng, Bang-Feng 763 (HKAS 57492) ; China: • Yunnan Province, Jianchuan City, Lao Jun Mountain (alt. 3400 m), 8 September 2009, Xiaofei Shi, Shi 288 (HKAS 71801) ; China: • Yunnan Province, Deqen, Shangri-la Town, Haba snow Mountain (alt. 4900 m), September 2008, Yanchun Li, Yanchun-Li 1476 (HKAS 56316) .</p><p>Notes.</p><p>This new species is sister to North American Suillus subaureus . The two species differ slightly in morphology including colors of the cap. Host association of this species needs to be further studied. As for Suillus subaureus, five needle pines are requisites for the establishment of seedlings. But it is unknown about the host species of S. phylosubaureus and whether five needle pines are required in any of its developmental stages.</p></div>	https://treatment.plazi.org/id/46A6DE8261E756A48F2367F00387926F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
751F7B99512758178D729627E666515E.text	751F7B99512758178D729627E666515E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus pinetorum (W. F. Chiu) H. Engel & Klofac	<div><p>Suillus pinetorum (W. F. Chiu) H. Engel &amp; Klofac, in Engel, et al., Schmier- und Filzröhrlinge s. l. in Europa, Die Gattungen Boletellus, Boletinus, Phylloporus, Suillus, Xerocomus (Weidhausen b. Coburg): 12 (1996)</p><p>Figs 26, 27</p><p>Basionym.</p><p>Boletinus punctatipes var. pinetorum W. F. Chiu Mycologia, 40 (2): 200 (1948)</p><p>Holotype.</p><p>China: • Yunnan Province, Kunming, Tiehfungan, 12 November 1941, W. F. Chiu (no. 7717)</p><p>Diagnosis.</p><p>Suillus pinetorum is morphologically identical to S. bovinus . This species is in association with Pinus yunnanensis and P. massoniana in southwestern China.</p><p>Typification.</p><p>China: • Yunnan Province, Kunming City, Dong Zhan, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=102.80042&amp;materialsCitation.latitude=25.053804" title="Search Plazi for locations around (long 102.80042/lat 25.053804)">Qinglong Village</a> (25°03'13.70"N, 102°48'1.50"E, alt. 1942 m), 15 August 2012, Rui Zhang, RZ 08151203 (neotype designated here, HKAS 91427, MBT 10025711) .</p><p>Morphology.</p><p>Pileus develops from convex to flat, margin inrolled at first, then expanding, 3–5 cm diameter, up to 8 cm broad, surface dry or viscid in moist, glabrous, color beige (5 A 3) to ochraceous cinnamon (5 A 6, 5 B 6). Pellicle peeling off easily. Hymenophore subdecurrent to decurrent, younger ones ochraceous (5 B 4), turn to darker ochraceous (5 B 5, 5 C 5) with age. Pores 1–1.2 mm diameter, angular, compound, radially arranged or inconspicuously lamellate. Tubes 1–4 mm deep, concolorous with pores, dotted with cinnamon (6 A 4) colored glandular dots. Stipe 3–4 × 0.3–1.5 cm, tapering downwards, solid, no glandular dots, no ring, concolorous with pileus, covered with some cinnamon or pinkish (5 C 6) small streaks. Context yellowish white to light orange (5 A 2) in both pileus and stipe, more pinkish (6 A 2) near cuticles. Do not change color anywhere. Mycelia white. Spore print olive brown (4 D 3). Odor and taste pleasant, chewy texture.</p><p>Basidiospores [80 / 2 / 4] (7.0) 7.5–8.5 × 3.0–3.5 μm, Q = (2.00) 2.14–2.67, Q sd = 2.33 ± 0.14, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, hyaline yellowish in KOH, tawny brown in Melzer’s. Basidia 4 - spored, clavate, bulbous top, 25.0–30.0 × 6.5–8.5 μm, hyaline yellow in KOH. Hymenophoral trama divergent, all encrusted by fine granules, thin-walled, smooth to wrinkled, mostly 4–8 μm. Pleuro- and Cheilocystidia in fascicles, abundant, clavate or cylindrical, up to 70 μm long, content brown or hyaline, surrounded by brown amorphous materials in KOH. Caulocystidia not seen. Pileipellis an ixocutis, hyphae hyaline, thin-walled and encrusted with hyaline to ochraceous granules, scattered in glue, mostly 3–8 μm, up to 14 μm wide. Stipitipellis encrusted by patches of amorphous pigments, most hyphae thin-walled, septated, interwoven, up to 13 μm wide. Context trama hyaline, smooth, thin-walled, interwoven, similar for pileus and stipe, mostly 4–20 μm, widest at stipe base to 40 μm. Clamp connections absent.</p><p>Habitat.</p><p>Solitary to scattered, in association with Pinus yunnanensis and P. massoniana .</p><p>Known distribution.</p><p>Mainly distributed in southwestern China.</p><p>Specimens examined.</p><p>China: • Yunnan Province, Diqing Tibetan Autonomous Prefecture, Ben Zi Lan, valley of Bai Ma Snow Mountain (alt. 4200 m), 6 September 2009, Xiaofei Shi, Shi 260 (HKAS 63132) ; China: • Yunnan Province, Zhanyi Town, Zhu Jiang Yuan, Maxiong Mountain, 30 June 2008, Xiaofei Shi, Shi 120 (HKAS 63281) ; China: • Yunnan Province, Dehong Prefecture, Yingjiang, from Tongbi Guan to Xima about 12 km, 18 July 2009, Yanchun Li, Yanchun-Li 678 (HKAS 59425) ; China: • Guizhou Province, Zunyi City, from Daozhen to Yangxi about 3 km (alt. 1120 m), 28 July 2010, Xiaofei Shi, Shi 393 (HKAS 63200) ; China: • Guizhou Province, Guiyang City, Kaiyang Town, Yonggang village, Gangzhai plantation (alt. 1300 m), 19 June 2010, Xiaofei Shi, Shi 348 (HKAS 63136) , China: • Hunan Province, Zhang Jia Jie City, Zhang Jia Jie National Forest Park, 16 June 2010, Xiaofei Shi, Shi 344 (HKAS 63137) .</p><p>Notes.</p><p>Suillus pinetorum was first documented as “ Boletinus punctatipes var. pinetorum ” by Chiu (1948) and later illustrated by Chiu (1957). The illustration, host and most part of the morphological descriptions match with our collections. However, not as Chiu (1948, 1957) described, the species does not have brown glandular dots and morphological descriptions of this species could be enriched with more details. In addition, the affiliation of Suillus pinetorum under Boletinus punctatipes is remotely correct, whereas comparisons with S. bovinus were missing. (Engel et al. 1996) reclassified the variety by Chiu (1948) under genus Suillus and raised its taxonomic level to species. The type collected by Chiu (1948) is missing at the fungarium of the Institute of Microbiology, Academia Sinica in Beijing, China; so a neotype is assigned here.</p><p>Suillus pinetorum is morphologically identical with S. bovinus . Suillus bovinus associates with Pinus sylvestris and distributes from Europe to northeastern China. Suillus pinetorum under current delimitation seems to contain new cryptic species. Collections associated with Pinus yunnanensis in southwestern China are not phylogenetically the same as collections growing with Pinus massoniana in southwestern and central China. It is uncertain if host association is rigorous for delimiting cryptic species. Pinus yunnanensis and P. massoniana are not sister species, and geographic ranges of the two overlap in southwestern China.</p></div>	https://treatment.plazi.org/id/751F7B99512758178D729627E666515E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
417F5DF1AEF25B11803C2907E9977F1B.text	417F5DF1AEF25B11803C2907E9977F1B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus subcinnamomeus R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus subcinnamomeus R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sp. nov.</p><p>Figs 22, 23</p><p>Etymology.</p><p>The cap color of this species is cinnamon.</p><p>Diagnosis.</p><p>Suillus subcinnamomeus has cinnamon color pileus and ivory white glandular dots when young. This species is in association with Pinus pumila in northeastern China.</p><p>Typification.</p><p>China: • Heilongjiang Province, Da Xing Anling, Dabai Mountain (alt. 1000 m), 22 August 2010, Xiaofei Shi, Shi 601 (holotype, HKAS 63222) .</p><p>GenBank.</p><p>ITS = KU 721496.</p><p>Morphology.</p><p>Pileus convex or obtuse, 4–7 cm diameter, surface viscid to glutinous, glabrous, background color yellow (4 A 6) or light cinnamon (5 A 5), small color streaks of bright reddish cinnamon (6 A 7, 6 A 8) resemble fibrils covering all over the cap. Hymenophore adnate, younger ones dark cinnamon (6 D 3–6 D 5), become more olive brown (5 E 5,5E 6) with age. Do not change color when bruised. Pores 2 per mm, round or angular. Tubes 3–6 mm deep, concolorous with pores. Stipe 6.5–8.5 × 1.2–1.8 cm, bulbous at base or clavate, solid, concolorous with pileus, with more reddish brown or cinnamon (5 E 6 or 6 C 7) color streaks. Glandular dots all over, ivory white (5 A 1) when young, become reddish brown (5 E 6) or brown (5 F 6) with age. Mycelia pinkish (6 A 5, 6 A 6) Context white to yellowish in pileus and stipe, light cinnamon (5 A 2, 5 A 3) close to the cuticles. Do not change color when exposed. Spore print unknown. Odor and taste indistinctive.</p><p>Basidiospores [40 / 2 / 2] 8.5–10.0 (10.5) × 3.5–4.5 μm, Q = 2.13–2.57, Q sd = 2.34 ± 0.13, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, hyaline to yellowish in KOH, tawny yellow in Melzer’s. Basidia 4 - spored, clavate, bulbous top, 23.0–32.0 × 6.2–7.5 μm, hyaline to yellowish in KOH, tawny yellow in Melzer’s. Hymenophoral trama divergent, thin-walled, very wrinkled, encrusted with some ochraceous granules in KOH, usually 6–8 μm. Pleuro- and Cheilocystidia abundant, in fascicles, clavate, up to 70 μm long, content brown or hyaline, surrounded by brown amorphous materials in KOH. Caulocystidia similar with pleuro- and cheilocystidia, septated once or twice especially at the base. Pileipellis a layer of scattered hyphae in glue, densely encrusted with fuzzy appearance and surrounded by tiny brown granules in KOH, most hyphae 5–7 μm, up to 8.5 μm wide. Stipitipellis a thick layer of brown amorphous pigments covers the stipe, with abundant caulocystidia intruding outwards. Context trama hyaline, smooth, thin-walled and interwoven, similar for pileus and stipe, mostly 22–32 μm, widest at stipe base to 43 μm. Clamp connections absent.</p><p>Habitat.</p><p>Solitary, associated with Pinus pumila .</p><p>Known distribution.</p><p>In northeastern China.</p><p>Specimens examined.</p><p>China: • Heilongjiang Province, Da Xing Anling, Xinlin Yuanlin Yuan park (alt. 600 m), 27 August 2010, Xiaofei Shi, Shi 615 (HKAS 63240) .</p><p>Notes.</p><p>This species is morphologically and phylogenetically very distinct. Sister species Suillus punctipes does not have such reddish cinnamon cap color and ivory white glandular dots when young.</p></div>	https://treatment.plazi.org/id/417F5DF1AEF25B11803C2907E9977F1B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
9672F2947C0452B4848484D8C3BC1C3B.text	9672F2947C0452B4848484D8C3BC1C3B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus subsibiricus R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus subsibiricus R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sp. nov.</p><p>Figs 24, 25</p><p>Etymology.</p><p>This species is related to Siberian Suillus sibiricus .</p><p>Diagnosis.</p><p>Suillus subsibiricus is in the S. americanus morphological complex. This species is in association with Pinus armandii and P. koraiensis in southwestern, northeastern and central China.</p><p>Typification.</p><p>China: • Sichuan Province, Huili Town, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=102.34006&amp;materialsCitation.latitude=27.739786" title="Search Plazi for locations around (long 102.34006/lat 27.739786)">Da Qing Mountain</a> (27°44'23.23"N, 102°20'24.20"E, alt. 2105 m), 29 July 2012, Rui Zhang, RZ 07291202 (holotype, HKAS 91415) .</p><p>GenBank.</p><p>ITS = KU 663189; LSU = KU 721520; TEFα- 1 = KU 663197; RPB 1 = KU 852259; RPB 2 = KU 852349.</p><p>Morphology.</p><p>Pileus convex to flat or slightly umbonate, 2–9 cm diameter, surface viscid, glabrous, background color yellow (3 A 4, 3 A 5), covered mainly to the margin with pallid pink (6 A 2) appressed squamules. Appendiculated with whitish or pinkish (6 A 3) fibrillose partial veil, lost in age. Hymenophore subdecurrent to decurrent, yellow (4 A 4, 4 A 5), often beaded with pallid yellow (4 A 2) droplets when young, golden yellow (4 A 7, 4 A 8) in age, turning brownish or sometimes light blue when bruised. Pores 1–2 per mm, round to angular, radially arranged. Tubes 3–8 mm deep, concolorous with pores, turning brownish or sometimes light blue when cut. Stipe 3–6.5 × 0.4–1.2 cm, tapering towards apex or equal, solid; cuticle background color yellow (4 A 3). Glandular dots covering stipe, dense, large and often connected in streaks, yellowish (4 A 4) when young, becoming reddish brown (6 B 4, 6 B 5) or brown (5 F 6) with age. Veil forming appendiculate patches on pileus margin, yellowish white (4 A 2) and cottony, lost in age. Ephemeral annulus often covering some of the stipe below the annulus, turning pinkish when bruised. Mycelia white, turning pinkish (6 A 5, 6 A 6) when bruised. Context white to yellowish in pileus and stipe, turning brownish or slightly blue when exposed. Spore print brown (6 D 4). Odor and taste indistinctive.</p><p>Basidiospores [80 / 2 / 2] 8.5–11 (12) × 3–4 (4.5) μm, Q = 2.22–2.63 (2.75), Q sd = 2.48 ± 0.21, smooth, oblong in face view, narrowly inequilateral with hilar appendage in profile view, hyaline yellow to brown in KOH, tawny brown in Melzer’s. Basidia 4 - spored, clavate, bulbous, 24.0–35.0 × 5.0–7.0 μm, hyaline yellow in KOH, tawny yellow in Melzer’s. Hymenophoral trama divergent, thin-walled, smooth or wrinkled, sparsely encrusted with granules in KOH, usually 5–8 μm. Pleuro- and Cheilocystidia usually in fascicles, abundant, clavate or cylindrical, up to 70 μm long, contents brown or hyaline, surrounded by brown amorphous material in KOH. Pileipellis a layer of ochraceous and scattered gelatinous hyphae, encrusted with fine granules, mostly 4–7 (9) μm wide. Stipitipellis covered by amorphous pigment, most hyphae thin-walled, septate, 3–10 μm. Caulocystidia similar to pleuro- and cheilocystidia, embedded by in abundant brown amorphous material. Context trama hyaline, smooth, thin-walled, interwoven, similar for pileus and stipe, mostly 4–15 μm, up to 30 μm at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Solitary to scattered, in association with Pinus armandii and P. koraiensis .</p><p>Known distribution.</p><p>Currently known from southwestern, northeastern and central China.</p><p>Specimens examined.</p><p>China: • Yunnan Province, Dali City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.205795&amp;materialsCitation.latitude=25.5687" title="Search Plazi for locations around (long 100.205795/lat 25.5687)">Miaopu hill</a> (25°34'7.32"N, 100°12'20.87"E, alt. 2208 m), 20 August 2012, Rui Zhang, RZ 08201203 (HKAS 91430) ; China: • Yunnan Province, Dali City, Cang Mountain, on the way to the television tower (alt. 2700 m), 22 August 2009, Cai Qing, CaiQing 113 (HKAS 58780) , China: • Heilongjiang Province, Harbin City, Mutan Xian, Dagui town, Friendship village, north side of Menggu Mountain (alt. 200 m), 11 August 2010, Xiaofei Shi, Shi 494 (HKAS 63155) , China: • Heilongjiang Province, Yichun City, Liangshui National Nature Reserves (alt. 150 m), 14 August 2010, Xiaofei Shi, Shi 521 (HKAS 63156) ; China: • Shaanxi Province, Baoji City, Mei Xian, Yingtou Town, Hao Ping Dali Village (alt. 1300 m), 12 September 2010, Xiaofei Shi, Shi 670 (HKAS 63195) ; China: • Shaanxi Province, Ankang City, Langao town, Nangong Mountain (alt. 2000 m), 29 July 2011, Xiaofei Shi, Shi 761 (HKAS 71891) .</p><p>Notes.</p><p>Suillus subsibiricus is morphologically identical to its sister species S. americanus . Geographic range and host associations are the keys to differentiate the two species. Suillus americanus was described from North America associated with Pinus subg. strobus and P. monticola . Another species, S. sibiricus, is not well documented in the literature and lacks holotype and following collections (Singer 1945). Suillus sibiricus was described from Siberia and presumably is associated with five needle Pinus sibirica . Suillus himalayensis, growing with P. wallichiana in Himalayan region, is also in the S. americanus complex.</p><p>It seems that S. americanus and S. subsibiricus under current delimitations contain more cryptic species. At least S. subsibiricus collections associated with P. armandii in southwestern China are not the same as the ones from northeastern China associated with P. koraiensis, which is supported by the TEFα- 1, RPB 1, RPB 2, concatenated phylogenies and coalescent analysis (Wu et al. 2000; Mueller et al. 2001). Phylogenies based on the ribosomal regions and morphological characters are not effective in resolving the S. americanus complex.</p></div>	https://treatment.plazi.org/id/9672F2947C0452B4848484D8C3BC1C3B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
1C8DAF7BC88F578C91126DAA4FC7DB2B.text	1C8DAF7BC88F578C91126DAA4FC7DB2B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Suillus zangii R. Zhang, X. F. Shi, G. M. Mueller & P. G. Liu 2025	<div><p>Suillus zangii R. Zhang, X. F. Shi, G. M. Mueller &amp; P. G. Liu sp. nov.</p><p>Figs 12, 13</p><p>Etymology.</p><p>The species epithet honors Chinese mycologist Mu Zang.</p><p>Diagnosis.</p><p>The basal stipe context turns greenish blue always when exposed.</p><p>Typification.</p><p>China: • Yunnan Province, Diqing Tibetan Autonomous Prefecture, Shangri-la town, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=99.504555&amp;materialsCitation.latitude=28.046164" title="Search Plazi for locations around (long 99.504555/lat 28.046164)">Nixi xiang</a> (28°02'46.19"N, 99°30'16.41"E, alt. 3086 m), 17 September 2010, Xiaofei Shi, Shi 703 (holotype, HKAS 63254) .</p><p>GenBank.</p><p>ITS = KU 721321; LSU = KU 721726; TEFα- 1 = KU 852220.</p><p>Morphology.</p><p>Pileus hemispherical to convex or flat, 3–8 cm diameter, surface viscid to glutinous in moist, glabrous, with amorphous brown cinnamon (6 D 5 to 6 D 7) color dots or patches over brownish yellow (5 B 4) background. Hymenophore adnate to subdecurrent, golden yellow (4 A 6, 4 A 7). Pores 1 to 2 per mm, angular. Tubes 4–6 mm deep, concolorous with pore surface. Stipe 5–8 × 1.5–2 cm, equal, solid, no veil, background color pallid yellow (3 A 4, 3 A 5), more yellowish towards the tube. Covered all over with glandular dots that are in streaks, brown (5 E 6) dots at apex, reddish brown (6 D 3) at the base. Mycelia white. Context yellowish white to yellow (3 A 3, 3 A 4) in pileus and stipe. Change color immediately in lower part of the stipe to greenish blue (25 A 5, 25 B 5) when cut. Spore print unknown. Odor and taste indistinctive.</p><p>Basidiospores [80 / 2 / 2] (8.5) 9.5–10.0 × 4.0–5.0 μm, Q = 1.90–2.38, Q sd = 2.14 ± 0.13, smooth, oblong in face view, narrowly inequilateral with a hilar appendage in profile view, brown or ochraceous in KOH, tawny yellow in Melzer’s. Basidia 4 - spored, clavate, bulbous top, 24.0–30.0 × 7.0–8.5 μm, hyaline yellow or brown in KOH, tawny yellow in Melzer’s. Hymenophoral trama divergent, wrinkled, thin-walled, hyaline and mostly 5–7 μm, up to 13 μm. Pleuro- and Cheilocystidia in fascicles, abundant, clavate, content brown or hyaline, surrounded by brown amorphous materials in KOH, up to 80 μm long. Caulocystidia abundant in all part of the stipe, morphologically similar with pleuro- and cheilocystidia, encrusted by brown pigments in KOH, up to 90 μm long. Pileipellis an ixocutis, hyphae densely encrusted with ochraceous granules, scattered in glue, most 3–10 μm, up to 13 μm wide. Stipitipellis mostly composed of interwoven hyphae, covered by brown amorphogous pigments, about 3–10 μm wide. Context trama hyaline, smooth, thin-walled, interwoven, similar for pileus and stipe, mostly 3–30 μm, up to 40 μm wide at stipe base. Clamp connections absent.</p><p>Habitat.</p><p>Solitary to scattered, in association with Pinus armandii .</p><p>Known distribution.</p><p>Currently only known from Shangri-la town in Yunnan Province, China.</p><p>Specimens examined.</p><p>China: • Yunnan Province, Diqing Tibetan Autonomous Prefecture, Shangri-la Town, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=99.49689&amp;materialsCitation.latitude=28.051035" title="Search Plazi for locations around (long 99.49689/lat 28.051035)">Nixi Xiang</a> (28°03'03.73"N, 99°29'48.80"E, alt. 3035 m), 17 September 2010, Xiaofei Shi, Shi 701 (HKAS 63237) ; • ibid Shi 702 (HKAS 63238) .</p><p>Notes.</p><p>This new species is sister with Suillus marginielevatus and S. indicus (Sarwar et al. 2015; Verma and Reddy 2015). Geographic ranges and host associations can help separate Suillus zangii from the other two. Unlike Suillus zangii and Suillus marginielevatus, S. indicus has a white and membranous ring on the stipe, appendiculated cap margin, and no glandular dots. Also, Suillus indicus and S. marginielevatus are both in association with Pinus wallichiana . So it would be interesting to know, excluding observational errors, reasons for the presence or absence of veil and glandular dots not conserved among closely related species.</p></div>	https://treatment.plazi.org/id/1C8DAF7BC88F578C91126DAA4FC7DB2B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Shi, Xiaofei;Zhang, Shiru;Mueller, Gregory M.;Liu, Peigui;Yu, Fuqiang;Senanayake, Indunil C.	Shi, Xiaofei, Zhang, Shiru, Mueller, Gregory M., Liu, Peigui, Yu, Fuqiang, Senanayake, Indunil C. (2025): A subgeneric revision of the genus Suillus (Suillaceae, Boletales) and novel taxa from Eastern Asia based on morphology and multigene phylogenies. IMA Fungus 16: e 144260, DOI: 10.3897/imafungus.16.144260
