identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
560AADC39B455E63925BE6832883528E.text	560AADC39B455E63925BE6832883528E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cortinarius brunneoverrucosus Zhu L. Yang, Liu K. Jia & Zi R. Wang 2025	<div><p>Cortinarius brunneoverrucosus Zhu L. Yang, Liu K. Jia &amp; Zi R. Wang sp. nov.</p><p>Fig. 2</p><p>Etymology.</p><p>The epithet “  brunneoverrucosus ” (Lat.) refers to the pileus with brown verrucose squamules of this species.</p><p>Holotype.</p><p>China • Yunnan Province: Pu’er City, Jingdong Yi Autonomous County <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=101.027&amp;materialsCitation.latitude=24.542833" title="Search Plazi for locations around (long 101.027/lat 24.542833)">Ailao Mountain Subtropical Forest Ecosystem Research Station, Chinese Academy of Sciences</a>, in a subtropical broad-leaved forest with trees of  Lithocarpus, 24°32.57'N, 101°1.62'E, elevation 2,491 m, 23 July 2013, Yang-Yang Cui 32 (KUN-HKAS 79712). GenBank: ITS: PQ 772212, nrLSU: PQ 772224  .</p><p>Diagnosis.</p><p>Cortinarius brunneoverrucosus is sister to  C. corrugatus Peck but differs by its yellowish brown to brown pileus with brown verrucose squamules, more robust stipe, relatively wider basidiospores, and exclusive occurrence in subtropical broad-leaved forest with trees of  Lithocarpus and  Quercus (Peck 1872; Phillips 2010; Kuo 2020).</p><p>Description.</p><p>Basidioma large. Pileus 8–10.5 cm diam, hemispherical, viscid, verrucose; yellow-brown to brown (5 B 7–5 C 7), darker towards the center (5 D 8), paler towards the margin (5 B 3–5 B 5); covered with brown (5 C 7) to dark brown (5 D 8–5 E 8) verrucose to floccose squamules; margin with innate radial stripes, occasionally with pale yellow (4 A 2) floccose squamules; context of pileus white (1 A 1). Lamellae adnate with decurrent tooth, crowded (L = 64–73, l = 33–38), pale brown (6 A 2–6 A 4) with a faint pale pinkish (12 A 2) tint. Stipe 8.5–18 × 1.2–2 cm, tapering upwards, pale brown (6 A 2–6 A 4) to pale yellow (3 A 2–3 A 4), covered with brown (6 C 4) to orange-brown (5 A 8) fibrillose squamules; context of stipe white (1 A 1); basal mycelium white (1 A 1) with a faint pale pinkish (12 A 2) tint.</p><p>Basidiospores [60 / 2 / 2] (12.5 –) 15–16.5 (– 17.5) × (10 –) 11.5–12.5 (– 15) μm, Q = 1.2–1.5 (– 1.75), av. = 15.64 ± 1.61 × 12.31 ± 1.48 μm, Qav. = 1.27 ± 0.12, broadly ellipsoid to broadly amygdaliform, strongly verrucose, inamyloid. Basidia 37.5–50 × 7.5–10 μm, 4 - spored, clavate. Trama of lamellae regular, composed of colorless to yellowish, smooth hyphae 10–12.5 μm wide. Cystidia absent. Pileipellis duplex: epicutis weakly developed, 12–15 μm thick, composed of only 3–5 layers of interwoven to parallel, colorless to yellowish, smooth, thin-walled, long-celled hyphae 2.5–4 µm wide; hypocutis composed of parallel, colorless to yellowish brown, cylindrical, thin-walled hyphae 12.5–20 μm wide. Clamp connections common in all parts of basidioma.</p><p>Habitat / host.</p><p>Summer to autumn. Solitary on soil in subtropical broad-leaved forests with trees of  Fagaceae .</p><p>Distribution.</p><p>Currently known from southwestern China.</p><p>Additional specimen examined.</p><p>China • Yunnan Province: Pu’er City, Jingdong Yi Autonomous County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=101.027&amp;materialsCitation.latitude=24.542833" title="Search Plazi for locations around (long 101.027/lat 24.542833)">Ailao Mountain Subtropical Forest Ecosystem Research Station, Chinese Academy of Sciences</a>, in a subtropical broad-leaved forest with trees of  Quercus, 24°32.57'N, 101°1.62'E, elevation 2,424 m, 8 October 2021, Jian-Wei Liu 2440 (KUN-HKAS 145321)  .</p><p>Notes.</p><p>Cortinarius brunneoverrucosus is characterized by its hemispherical, viscid, verrucose pileus, pale brown lamellae with a slightly pale pinkish tint, and relatively larger, broadly ellipsoid to ellipsoid basidiospores.</p><p>Cortinarius brunneoverrucosus is sister to  C. corrugatus Peck, originally described from the highlands in the United States, under  Aalmia latifolia, but  C. brunneoverrucosus is only found in subtropical China, under trees of  Lithocarpus or  Quercus . Moreover,  C. corrugatus differs from  C. brunneoverrucosus by its convex to broadly convex pileus with distinctively corrugated-wrinkled, thinner stipe, amygdaliform, relatively narrower basidiospores (12–15 × 8–10 μm) (Peck 1872; Phillips 2010; Kuo 2020).</p><p>Cortinarius brunneoverrucosus belongs to sect. Dulciolentes Soop, a small section that has previously included only seven species, mainly distributed in Australia, inhabiting forests with  Fagaceae,  Nothofagaceae, and  Myrtaceae (Soop et al. 2019) . However, excluding  C. corrugatus, which is from North America and is agaricoid, as mentioned earlier, three other species from Oceania,  C. peraurantiacus Peintner &amp; M. M. Moser,  C. pisciodorus (E. Horak) Peintner &amp; M. M. Moser, and  C. dulciolens E. Horak, M. M. Moser, Peintner &amp; Vilgalys, are all sequestrate (Moser 1983; Peintner et al. 2002 a, 2002 b; Soop et al. 2019). The discovery of  C. brunneoverrucosus represents the first species of sect. Dulciolentes in China and the second agaricoid taxon within the section.</p></div>	https://treatment.plazi.org/id/560AADC39B455E63925BE6832883528E	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.		Pensoft via Plazi	Jia, Liu-Kun;Wang, Zi-Rui;Yang, Zhu-Liang	Jia, Liu-Kun, Wang, Zi-Rui, Yang, Zhu-Liang (2025): Five new species of Cortinarius (Cortinariaceae) from Yunnan, China, based on molecular and morphological evidence. MycoKeys 116: 145-166, DOI: 10.3897/mycokeys.116.146710
C86A92F1DC065C6FB59FB8425242CF02.text	C86A92F1DC065C6FB59FB8425242CF02.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cortinarius coriaceus Zhu L. Yang, Liu K. Jia & Zi R. Wang 2025	<div><p>Cortinarius coriaceus Zhu L. Yang, Liu K. Jia &amp; Zi R. Wang sp. nov.</p><p>Fig. 3</p><p>Etymology.</p><p>The epithet “  coriaceus ” (Lat.) refers to the brown pileus with a leathery texture of this species.</p><p>Holotype.</p><p>China • Yunnan Province: Lijiang City, Yulong Naxi Autonomous County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.1785&amp;materialsCitation.latitude=27.0035" title="Search Plazi for locations around (long 100.1785/lat 27.0035)">Lijiang Alpine Botanical Garden</a>, in a subalpine temperate broad-leaved and coniferous mixed forest with trees of  Quercus and  Pinus, 27°0.21'N, 100°10.71'E, elevation 3,340 m, 7 August 2023, Dong-Mei Li 299 (KUN-HKAS 145316). GenBank: ITS: PQ 772202, nrLSU: PQ 772214  .</p><p>Diagnosis.</p><p>Cortinarius coriaceus looks like  C. odoritraganus Niskanen, Liimat. &amp; Ammirati, but differs in its emarginate lamellae, cylindrical stipe, and relatively larger basidiospores (Niskanen 2020).</p><p>Description.</p><p>Basidioma medium-sized to large. Pileus 3 cm diam when young, 4.5–7 cm diam when mature, initially slightly campanulate, becoming plano-convex, occasionally with slightly subumbonate center, viscid, with a leathery texture; brown (6 C 4–6 C 7), paler (6 A 2–6 A 4) towards the center, covered with white (1 A 1) fibrillose squamules when young; pale brown to brown (6 A 4–6 C 4), pale brown (6 A 2), or dark brown (6 D 4–6 D 6) towards the center when mature; margin incurved, with innate radial brownish (6 C 2–6 C 3) stripes when young; context of pileus pale brown to brown (6 A 3–6 B 3, 6 C 6). Lamellae emarginate, medium-spaced (L = 38–52, l = 27–36), pale brown (6 A 4) with a faint pinkish (12 A 2) tint when young, later brown (6 C 4–6 C 7). Stipe 4.5–6 × 0.7–1.2 cm, cylindrical, dirty white (1 A 1–1 B 1) and pale violaceous (16 A 2–16 A 4), with more and more violaceous (16 A 4) tint towards the stipe apex when young, later dirty white (1 A 1–1 B 1), pale brown (6 B 2–6 B 4), covered with brown (6 C 6) to dark brown (6 D 6) fibrillose squamules; annulus cortinate; context of stipe dirty white (1 A 1–1 B 1) with brown (6 C 6); basal mycelium white (1 A 1).</p><p>Basidiospores [60 / 3 / 3] (10 –) 11.5–12.5 (– 14) × (5 –) 7.5–10 μm, Q = 1.25–1.43 (– 1.66), av. = 12.06 ± 0.85 × 8.33 ± 1.48 μm, Qav. = 1.48 ± 0.24, ellipsoid to amygdaliform, moderately to strongly verrucose, inamyloid. Basidia 37.5–43 × 7.5–10 μm, 4 - spored, clavate. Trama of lamellae regular, composed of colorless to yellowish, smooth hyphae 12.5–15 μm wide. Cystidia absent. Pileipellis duplex: epicutis weakly developed, 15–20 μm thick, composed of only 2–3 layers of interwoven to parallel, colorless, smooth, thin-walled, long-celled hyphae 3–7.5 µm wide; hypocutis composed of interwoven to parallel, colorless, cylindrical, thin-walled hyphae 12.5–17.5 μm wide. Clamp connections common in all parts of basidioma.</p><p>Habitat / host.</p><p>Summer. Solitary or gregarious on soil in subalpine temperate broad-leaved and coniferous mixed forests with trees of  Quercus and  Pinus .</p><p>Distribution.</p><p>Currently known from southwestern China.</p><p>Additional specimens examined.</p><p>China • Yunnan Province: Lijiang City, Yulong Naxi Autonomous County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.1785&amp;materialsCitation.latitude=27.0035" title="Search Plazi for locations around (long 100.1785/lat 27.0035)">Lijiang Alpine Botanical Garden</a>, in a subalpine temperate broad-leaved and coniferous mixed forest with trees of  Quercus and  Pinus, 27°0.21'N, 100°10.71'E, elevation 3,340 m, 7 August 2023, Guan-Rui Li 328 (KUN-HKAS 145314) ,  same place and date, Guan-Rui Li 333 (KUN-HKAS 145315).</p><p>Notes.</p><p>Cortinarius coriaceus is characterized by its brown, leathery-wrinkled pileus, pinkish-tinted lamellae, and relatively larger basidiospores.</p><p>Cortinarius coriaceus is phylogenetically closely related to and morphologically similar to  C. odoritraganus, known from Eastern North America and Costa Rica, in mixed temperate forest with  Abies and  Betula or mountain  Quercus forest. However,  C. odoritraganus differs in its paler pileus, adnexed, purple-brown to brown lamellae, longer and thicker stipe (5–10 × 1–2 cm), and relatively smaller basidiospores (9.5–11.5 × 6–7.5 μm) (Niskanen 2020).  Cortinarius niveotraganus Kytöv., Niskanen &amp; Liimat., another related species, is distinguished by its hemispherical to broadly convex pileus, initially white to greyish white lamellae with bluish tints, clavate stipe, relatively smaller basidiospores (8.6–10.9 × 5.2–6.3 μm), and occurrence in planted  Betula forests (Niskanen 2014).</p></div>	https://treatment.plazi.org/id/C86A92F1DC065C6FB59FB8425242CF02	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.		Pensoft via Plazi	Jia, Liu-Kun;Wang, Zi-Rui;Yang, Zhu-Liang	Jia, Liu-Kun, Wang, Zi-Rui, Yang, Zhu-Liang (2025): Five new species of Cortinarius (Cortinariaceae) from Yunnan, China, based on molecular and morphological evidence. MycoKeys 116: 145-166, DOI: 10.3897/mycokeys.116.146710
8D0A656BCD2058A69921209107839391.text	8D0A656BCD2058A69921209107839391.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cortinarius fuscocandidus Zhu L. Yang, Liu K. Jia & Zi R. Wang 2025	<div><p>Cortinarius fuscocandidus Zhu L. Yang, Liu K. Jia &amp; Zi R. Wang sp. nov.</p><p>Fig. 4</p><p>Etymology.</p><p>The epithet “  fuscocandidus ” (Lat.) refers to the dark brown pileus with a white margin of this species.</p><p>Holotype.</p><p>China • Yunnan Province: Lijiang City, Ninglang Yi Autonomous County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.92717&amp;materialsCitation.latitude=27.165" title="Search Plazi for locations around (long 100.92717/lat 27.165)">Xinyingpan Township</a>, in a subalpine temperate broad-leaved and coniferous mixed forest with trees of  Quercus and  Pinus, 27°9.9'N, 100°55.63'E, elevation 2,700 m, 7 August 2011, Qing Cai 602 (KUN-HKAS 70198). GenBank: ITS: PQ 772210, nrLSU: PQ 772222  .</p><p>Diagnosis.</p><p>Cortinarius fuscocandidus resembles  C. fulvopaludosus Kytov., Niskanen &amp; Liimat. (Liimatainen 2017), but differs in its white margin, more robust stipe, and broadly ellipsoid to amygdaliform basidiospores.</p><p>Description.</p><p>Basidioma small. Pileus 1.8–2 cm diam, applanate to plano-convex with a papilla, viscid; dark brown (6 E 7); margin white (1 A 1), sparsely covered with brown (6 C 6) fibrillose squamules; context of pileus brown (6 D 7). Lamellae emarginate with decurrent tooth, medium-spaced (L = 25–33, l = 9–12), pale brown (6 B 4) with a somewhat pale violaceous (16 A 2) tint. Stipe 5–7 × 0.3–0.6 cm, cylindrical, white (1 A 1) with a somewhat pale violaceous (16 A 2) tint, pale brown (6 B 2–6 B 4) when damaged; annulus cortinate; context of stipe not observed; basal mycelium white (1 A 1) with a somewhat pale violaceous (16 A 2) tint.</p><p>Basidiospores [60 / 2 / 2] 7.5–10.5 × (5 –) 7–10 μm, Q = 1.07–1.5 (– 1.65), av. = 8.19 ± 1.24 × 6.99 ± 1.26 μm, Qav. = 1.29 ± 0.18, broadly ellipsoid to amygdaliform, occasionally subglobose, strongly verrucose, inamyloid. Basidia 20–22.5 × 7.5–10 μm, 4 - spored, clavate. Trama of lamellae regular, composed of colorless, smooth hyphae 7.5–10 μm wide. Cystidia absent. Pileipellis duplex: epicutis weakly developed, 11–15 μm thick, gelatinous, composed of interwoven to parallel, colorless, smooth, thin-walled, long-celled hyphae 2.5–5 µm wide, with brownish incrustation; hypocutis composed of only 3–5 layers of interwoven to parallel, colorless, cylindrical, thin-walled hyphae 7.5–15 μm wide. Clamp connections common in all parts of basidioma.</p><p>Habitat / host.</p><p>Summer. Gregarious on soil in subalpine temperate broad-leaved and coniferous mixed forests with trees of  Quercus and  Pinus .</p><p>Distribution.</p><p>Currently known from southwestern China.</p><p>Additional specimen examined.</p><p>China • Yunnan Province: Lijiang City, Gucheng District, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.307335&amp;materialsCitation.latitude=26.909166" title="Search Plazi for locations around (long 100.307335/lat 26.909166)">Jinshan Township</a>, in a subalpine temperate broad-leaved and coniferous mixed forest with trees of  Quercus and  Pinus, 26°54.55'N, 100°18.44'E, elevation 2,145 m, 28 July 2011, Li-Ping Tang 1331 (KUN-HKAS 69792)  .</p><p>Notes.</p><p>Cortinarius fuscocandidus is characterized by its dark brown, papillate pileus with a white margin, pale brown lamellae with a somewhat pale violaceous tint, and broadly ellipsoid basidiospores.</p><p>Phylogenetically,  C. fuscocandidus belongs to sect. Hinnulei and is closely related to  C. fulvopaludosus . However, the phylogenetic tree shows low support between these two similar species, which can only be distinguished by their margin coloration and basidiospore size (Liimatainen 2017).</p><p>Morphologically,  C. fuscocandidus looks like a typical member of sect. Hinnulei (Fries 1838; Bidaud et al. 2012; Li et al. 2016; Liimatainen et al. 2017; 2020), where the overall coloration of the pileus is brown to dark brown. However, the white margin, somewhat pale violaceous lamellae, and broadly ellipsoid basidiospores (7.5–10.5 × (5 –) 7–10 μm) differentiate it from the most similar species,  C. badioflavidus Ammirati et al., which has brown to rich brown lamellae and narrower basidiospores (8.1–10.5 × 5.8–6.5 μm) (Li et al. 2016).</p></div>	https://treatment.plazi.org/id/8D0A656BCD2058A69921209107839391	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.		Pensoft via Plazi	Jia, Liu-Kun;Wang, Zi-Rui;Yang, Zhu-Liang	Jia, Liu-Kun, Wang, Zi-Rui, Yang, Zhu-Liang (2025): Five new species of Cortinarius (Cortinariaceae) from Yunnan, China, based on molecular and morphological evidence. MycoKeys 116: 145-166, DOI: 10.3897/mycokeys.116.146710
0FAF628053FC55B5B0394E61CC56BC25.text	0FAF628053FC55B5B0394E61CC56BC25.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cortinarius neodisjungendus Zhu L. Yang, Liu K. Jia & Zi R. Wang 2025	<div><p>Cortinarius neodisjungendus Zhu L. Yang, Liu K. Jia &amp; Zi R. Wang sp. nov.</p><p>Fig. 5</p><p>Etymology.</p><p>The epithet “  neodisjungendus ” (Lat.) refers to its similarity to  C. disjungendus .</p><p>Holotype.</p><p>China • Yunnan Province: Pu’er City, Jingdong Yi Autonomous County <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=101.027&amp;materialsCitation.latitude=24.542833" title="Search Plazi for locations around (long 101.027/lat 24.542833)">Ailao Mountain Subtropical Forest Ecosystem Research Station, Chinese Academy of Sciences</a>, in a subtropical broad-leaved forest with trees of  Quercus, 24°32.57'N, 101°1.62'E, elevation 2,532 m, 8 October 2021, Jian-Wei Liu 2505 (KUN-HKAS 145322). GenBank: ITS: PQ 772207, nrLSU: PQ 772219  .</p><p>Diagnosis.</p><p>Cortinarius neodisjungendus differs from other species within sect.  Disjungendi by its plano-convex pileus with an umbo, pale brown coloration, and relatively larger basidiospores (Karsten 1893; Niskanen 2014; Liimatainen et al. 2015).</p><p>Description.</p><p>Basidioma medium-sized. Pileus 3.5–4.2 cm diam, applanate to plano-convex with an umbonate center, viscid with hygrophanous streaks; pale brown to brown (6 D 3–6 D 4), dark brown (6 E 6) towards the center, white (1 A 1) to pale brown (6 B 2) towards the margin, sparsely covered with white (1 A 1) fibrillose squamules; context not observed. Lamellae emarginate, crowded (L = 52–61, l = 48–53), pale brown (6 B 4) to brown (6 D 6). Stipe 8–10 × 0.5–0.8 cm, cylindrical with a subbulbous base 1–1.5 cm wide, white (1 A 1) to pale brown (6 B 2–6 B 4), base sparsely covered with brown (6 C 5) fibrillose squamules; basal mycelium white (1 A 1).</p><p>Basidiospores [60 / 2 / 2] 11–13.5 (– 15) × (5 –) 7.5–9 μm, Q = 1.43–1.71 (– 2), av. = 12.73 ± 0.93 × 7.52 ± 0.96 μm, Qav. = 1.71 ± 0.2, broadly amygdaliform, strongly verrucose, inamyloid. Basidia 32.5–40 × 7.5–10 μm, 4 - spored, clavate. Trama of lamellae regular, composed of colorless to brownish, smooth hyphae 10–12.5 μm wide. Cystidia absent. Pileipellis duplex: epicutis weakly developed, 8.5–15 μm thick, composed of only 3–5 layers of interwoven to parallel, colorless to brownish, smooth, thin-walled, long-celled hyphae 2.5–5 µm wide; hypocutis composed of interwoven to parallel, colorless to pale brownish, cylindrical, thin-walled hyphae 12.5–15 μm wide. Clamp connections common in all parts of basidioma.</p><p>Habitat / host.</p><p>Autumn. Solitary on soil in subtropical broad-leaved forests with trees of  Quercus .</p><p>Distribution.</p><p>Currently known from southwestern China.</p><p>Additional specimen examined.</p><p>China • Yunnan Province: Pu’er City, Jingdong Yi Autonomous County <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=101.027&amp;materialsCitation.latitude=24.542833" title="Search Plazi for locations around (long 101.027/lat 24.542833)">Ailao Mountain Subtropical Forest Ecosystem Research Station, Chinese Academy of Sciences</a>, in a subtropical broad-leaved forest with trees of  Quercus, 24°32.57'N, 101°1.62'E, elevation 2,532 m, 8 October 2021, Jian-Wei Liu 2529 (KUN-HKAS 145323)  .</p><p>Notes.</p><p>Cortinarius neodisjungendus is characterized by its hygrophanous, pale brown to brown pileus with a whitish margin, whitish stipe, and relatively larger basidiospores. All other species in sect.  Disjungendi have a brownish pileus lacking a white margin, a brown stipe, and smaller basidiospores (range from 9–11 μm long, 6–7 μm wide) (Karsten 1893; Niskanen 2014; Liimatainen et al. 2015, 2020).</p></div>	https://treatment.plazi.org/id/0FAF628053FC55B5B0394E61CC56BC25	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.		Pensoft via Plazi	Jia, Liu-Kun;Wang, Zi-Rui;Yang, Zhu-Liang	Jia, Liu-Kun, Wang, Zi-Rui, Yang, Zhu-Liang (2025): Five new species of Cortinarius (Cortinariaceae) from Yunnan, China, based on molecular and morphological evidence. MycoKeys 116: 145-166, DOI: 10.3897/mycokeys.116.146710
56BE89C3F54258329D7D9E2207C0D673.text	56BE89C3F54258329D7D9E2207C0D673.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cortinarius sinoconfirmatus Zhu L. Yang, Liu K. Jia & Zi R. Wang 2025	<div><p>Cortinarius sinoconfirmatus Zhu L. Yang, Liu K. Jia &amp; Zi R. Wang sp. nov.</p><p>Fig. 6</p><p>Etymology.</p><p>The epithet “  sinoconfirmatus ” (Lat.) refers to the species in China that is similar to  C. confirmatus .</p><p>Holotype.</p><p>China • Yunnan Province: Lijiang City, Yulong Naxi Autonomous County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.099335&amp;materialsCitation.latitude=26.815166" title="Search Plazi for locations around (long 100.099335/lat 26.815166)">Taian Township</a>, in a subalpine temperate coniferous forest with trees of  Pinus, 26°48.91'N, 100°5.96'E, elevation 2,633 m, 9 August 2023, Zi-Rui Wang 160 (KUN-HKAS 145320). GenBank: ITS: PQ 772205, nrLSU: PQ 772217  .</p><p>Diagnosis.</p><p>Cortinarius sinoconfirmatus looks like  C. confirmatus Rob. Henry, but differs in its dark brown pileus center, more brown lamellae, thinner stipe, and larger basidiospores (Henry 1983; Mahiques et al. 2001; Ortega et al. 2007; Liimatainen et al. 2017).</p><p>Description.</p><p>Basidioma medium-sized. Pileus 1.2 cm diam when young, 3–4.3 cm diam when mature, hemispherical when young, later convex, viscid; pale brown (6 B 2–6 B 4) to brown (5 C 6–5 C 7), covered with white (1 A 1) fibrillose squamules when young; brown (6 C 4–6 C 6), pale brown (6 B 2–6 B 4) towards the margin, dark brown (6 E 7) towards the center when mature; margin covered with brown (6 C 7) fibrillose squamules; context of pileus gelatinous, pale brown (6 B 2–6 B 4) to brown (6 C 7). Lamellae emarginate, crowded (L = 74–95, l = 46–52), pale brown (6 B 2–6 B 3) with a faint pinkish (12 A 2) tint when young, later brown (6 B 6–6 C 6). Stipe 5–7 × 0.5–0.7 cm, cylindrical, dirty white (1 A 1–1 B 1), pale brown (6 B 2–6 B 3) to brown (6 C 6), with a pale violaceous (16 A 2–16 A 3) tint at the stipe apex when young, later the upper 1 / 2 stipe dirty white, pale brown (6 B 2–6 B 3) to brown (6 C 6) with a pale violaceous (16 A 2–16 A 3) tint, covered with brown (7 C 4) fibrillose squamules, the lower 1 / 2 brown to dark brown (7 B 4–7 E 4); context of stipe dirty white (1 A 1–1 B 1) and brown (7 C 6); basal mycelium white (1 A 1).</p><p>Basidiospores [60 / 3 / 3] 7.5–11.5 × 4–5 (6) μm, Q = (1.5 –) 2–3.13, av. = 9.92 ± 1.19 × 4.85 ± 0.59 μm, Qav. = 2.06 ± 0.28, ellipsoid to narrowly ellipsoid, moderately to strongly verrucose, inamyloid. Basidia 27.5–35 × 5–7.5 μm, 4 - spored, clavate. Trama of lamellae regular, composed of pale yellowish, smooth hyphae 12.5–15 μm wide. Cystidia absent. Pileipellis duplex: epicutis weakly developed, 10–14 μm thick, gelatinous, composed of only 2–4 layers of interwoven to parallel, colorless to pale yellow, smooth, thin-walled, long-celled hyphae 2.5–5 µm wide; hypocutis composed of interwoven to parallel, colorless, cylindrical, thin-walled hyphae 12.5–17.5 μm wide. Clamp connections common in all parts of basidioma.</p><p>Habitat / host.</p><p>Summer. Gregarious on soil in subalpine temperate coniferous forests with trees of  Pinus .</p><p>Distribution.</p><p>Currently known from southwestern China.</p><p>Additional specimens examined.</p><p>China • Yunnan Province: Lijiang City, Yulong Naxi Autonomous County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=100.0725&amp;materialsCitation.latitude=26.805334" title="Search Plazi for locations around (long 100.0725/lat 26.805334)">Taian Township</a>, in a subalpine temperate coniferous forest with trees of  Pinus, 26°48.91'N, 100°5.96'E, elevation 2,633 m, 9 August 2023, Zi-Rui Wang 154 (KUN-HKAS 145319) ;  same Township and date, 26°48.32'N, 100°4.35'E, elevation 2,700 m, Dong-Mei Li 331 (KUN-HKAS 145318) .</p><p>Notes.</p><p>Cortinarius sinoconfirmatus is closely related to  C. confirmatus, but the latter differs from the former by its paler pileus with vinaceous or violaceous tints, paler, adnate lamellae, more robust stipe, and narrower basidiospores (8.8–10 × 5.2–5.6 μm, Q = 1.55–1.9) (Henry 1983; Mahiques et al. 2001; Ortega et al. 2007; Liimatainen et al. 2017).  Cortinarius sinoconfirmatus is also closely related to  C. imbutus Fr. and  C. saturninus (Fr.) Fr. However,  C. imbutus differs from  C. sinoconfirmatus by its pale yellow pileus and whitish stipe with somewhat violaceous tint at the stipe apex (Fries 1838), and  C. saturninus differs from  C. sinoconfirmatus by its dark reddish brown pileus, violet stipe with purplish red squamules (Fries 1838).</p><p>Morphologically,  C. sinoconfirmatus looks like  C. lucorum (Fr.) E. Berger, but the latter differs from the former by its pileus with marble-like stripes and more prominent bulbous stipe base (Bidaud et al. 2000; Matheny and Ammirati 2006).</p></div>	https://treatment.plazi.org/id/56BE89C3F54258329D7D9E2207C0D673	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.		Pensoft via Plazi	Jia, Liu-Kun;Wang, Zi-Rui;Yang, Zhu-Liang	Jia, Liu-Kun, Wang, Zi-Rui, Yang, Zhu-Liang (2025): Five new species of Cortinarius (Cortinariaceae) from Yunnan, China, based on molecular and morphological evidence. MycoKeys 116: 145-166, DOI: 10.3897/mycokeys.116.146710
