identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
3129A832FFFB564B40BFD7D6FC43FD34.text	3129A832FFFB564B40BFD7D6FC43FD34.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acyanoboletus rugosipileus G. Wu & Xin Zhang 2025	<div><p>Acyanoboletus rugosipileus G. Wu &amp; Xin Zhang, sp. nov. Figs 1–3</p><p>MycoBank no.: MB 855083</p><p>Diagnosis: Distinguished from other species of Acyanoboletus by its rugose pileus surface and additionally differs from A. controversus by longer basidiospores, and differs from A. dissimilis (E. Horak &amp; G. Wu 2023: 755) by the larger basidioma and nearly glabrous stipe.</p><p>Holotype: CHINA, Yunnan Province, Xishuangbanna Dai Autonomous Prefecture, Mengla County, Xishuangbanna National Natural Reserve, elev. 1030 m, 6 July 2014, Gang Wu 1259 (HKAS88996).</p><p>Gene sequences ex-holotype: PQ514134 (ITS), PQ517512 (nrLSU), PQ536872 ( TEF 1), PQ536877 (RPB 1), PQ536882 (RPB 2).</p><p>Etymology: rugosipileus (Lat.), in reference to the rugose pileus of this species.</p><p>Pileus 4–9 cm diam., convex to broadly convex, surface usually rugose when mature; olive brown (4E8–4C4), chamois to bamboo yellow (4C4–4C5), brownish orange (5C4–5C5), light brown (5D4–5D5), sometimes paler in the margin, slightly viscid when wet, sterile margin present and often involute; context 9–11.5 mm thick, light yellow (4A4), yellowish white to pale yellow (1A2–1A3), unchanging upon exposure. Hymenophore sinuate, 3.5–11 mm thick; surface and tubes concolorous, pale yellow to pastel yellow (2A3–2A4) when young, wax yellow to absinthe yellow (3B5–3C5) in age, unchanging when bruised; pores roundish, 2 per mm. Stipe 6–9 cm long, 0.7–1.4 cm diam., central, subcylindrical, curved, firm, solid; surface dull yellow to straw yellow (3B3–3B4), golden yellow to grayish orange (5B6–5B7), often with brown tinge, covered with darker granules, sometimes with indistinctive reticulations or longitudinal striations on the upper part, unchanging when touched; context firm, pale yellow mixed with dull yellow, unchanging on exposure. Basal mycelium milky white.</p><p>Basidiospores (9.5) 10–12 (12.5) × (4) 4.5–5.5 μm [Q = (1.85) 1.89–2.55 (2.93), Q m = 2.18 ± 0.20], fusiform and inequilateral in side view, with suprahilar depression, fusiform in face view, yellowish, smooth, thin-walled. Basidia 26–45 × 8.5–12.5 μm, broadly clavate, 4-spored, rarely 2-spored, sterigmata up to 4.5 µm long. Cheilocystidia 33–60 × 7–10 μm, abundant, subfusoid to lanceolate, with short to long beaks, thin-walled. Pleurocystidia 32–86 × 6–14 μm, scattered, subfusoid, lanceolate to broadly ventricose, with short to long beaks, thin-walled. Hymenophoral trama boletoid, 4.5–10 μm wide. Pileipellis an intricate trichoderm to interwoven subcutis, about 150 μm thick, composed of filamentous hyphae 4–7 μm wide, thin-walled, with subcylindrical terminal cells 20–77 × 4–8 μm, thin-walled. Pileal trama composed of interwoven hyphae 4–10 μm wide. Stipitipellis 60–90 μm thick, hymeniform with short-clavate terminal cells (17.5–31 × 6–13 μm). Stipe trama composed of longitudinally arranged parallel thin-walled hyphae 4–14 μm wide. Clamp connections absent.</p><p>Habitat and distribution:—On soil in broad-leaved forests dominated by Fagaceae trees ( Lithocarpus spp., Castanopsis spp., etc.). May to July. Currently only known in tropical to subtropical regions of China.</p><p>Additional specimens examined:— CHINA, Guangdong Province: Shenzhen City, 2 May2024, SF1443724056718- 3 (HKAS 136929). Chongqing Municipality, Beipei District, 30 June 2024, SF1448175774620-4 (HKAS 144431) ; ibid., Jiangjin District, 4 July 2024, Xuemei Li YT 7476700591476-6 (HKAS 144429) ; ibid., Jiangjin District, 25 June, Haolong Zeng &amp; Chuan Xing SF 1448335984750-3 (HKAS 144430)</p></div>	https://treatment.plazi.org/id/3129A832FFFB564B40BFD7D6FC43FD34	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	Zhang, Xin;Li, Guangmei;Wang, Yuhang;Wu, Gang	Zhang, Xin, Li, Guangmei, Wang, Yuhang, Wu, Gang (2025): A new species of the subfamily Suillelloideae (Boletaceae, Boletales) from China. Phytotaxa 689 (2): 204-212, DOI: 10.11646/phytotaxa.689.2.3, URL: https://doi.org/10.11646/phytotaxa.689.2.3
