identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
3B50CF702DCD518385D9464BA7BD55F0.text	3B50CF702DCD518385D9464BA7BD55F0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Inocybe subaeruginascens Y. G. Fan, Hai J. Li, F. Xu, T. Z. Liu & Jia-Qi Liang 2026	<div><p>Inocybe subaeruginascens Y. G. Fan, Hai J. Li, F. Xu, T. Z. Liu &amp; Jia-Qi Liang sp. nov.</p><p>Figs 4, 5</p><p>Chinese name.</p><p>青脚丝盖伞 (Qīng Jiăo Sī Gài Săn).</p><p>Etymology.</p><p>subaeruginascens, in reference to the similar species Inocybe aeruginascens .</p><p>Holotype.</p><p>China • Beijing: Dongcheng district, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=116.401115&amp;materialsCitation.latitude=39.884167" title="Search Plazi for locations around (long 116.401115/lat 39.884167)">Temple of Heaven</a>, alt: 40 m, 39°53'3"N, 116°24'4"E, on the ground of Sophora japonica, 6 July 2022, Li 20220706-10 (FCAS 9883, holotype). GenBank accession numbers: ITS – PP 574571, LSU – PP 573132 and RPB 2 – PP 583565.</p><p>Diagnosis.</p><p>Pileus ochraceous yellow, stipe white with a bluish tint; Basidiospores 7–9.5 × 4–6 μm, hymenial cystidia as metuloids, versiform, mostly lageniform to sublageniform. Inocybe subaeruginascens differs from I. aeruginascens by the lack of a greenish tinge in the disc and stipe, the presence of a bluish tint in the lower part of the stipe, a different phylogenetic placement and ecology.</p><p>Description.</p><p>Basidiomata small. Pileus 10–29 mm in diam., at first conical to conical-convex, becoming broadly convex to concave with age, margin initially deflexed, straight to uplifted when mature. Surface dry, glabrous-fibrillose to appressed fibrillose, occasionally appressed scaly with protruding fibrils toward the margin; uniformly straw yellow (4 A 6) to dingy fawn (4 B 8) around the disc, paler outwards. Stipe 30–75 × 4–7 mm, cylindrical or slightly swollen toward the apex, solid, central or eccentric, nearly smooth with sparse fibrils at the stipe apex; white (1 A 1) to cream white (1 B 2) but with a bluish tinge (24 B 3) in the lower half. Lamellae crowded, adnexed, often subsinuate; initially white (1 A 1), then yellowish white (5 A 3), turning to yellowish brown (5 B 5) when old, edge concolorous, even. Context fleshy in pileus, 1–2 mm thick, white (1 A 1) to cream white (1 B 2); fibrillose in stipe, striate, shiny, concolorous with the pileus. Odour fungoid.</p><p>Basidiospores [100 / 3 / 3] (6.9) 7.1–8.0 – 8.9 (9.2) × (4.0) 4.2–4.9 – 5.1 (5.5) μm, Q = (1.36) 1.47–1.62 – 1.82 (1.98), Q m ± SD = 1.62 ± 0.11, ellipsoid to subamygdaliform, sub-conical at the apex, thick-walled, smooth, yellowish to yellowish brown. Basidia 20–30 × 6–9 μm (n = 15), mostly ellipsoid, sometimes broadly clavate, obtuse at the apex, then somewhat tapered towards the base, 4 - spored. Pleurocystidia 55–70 – 86 × 12–18 – 30 μm (n = 40), abundant, mostly broadly fusiform or lageniform, at times (sub) cylindrical to (sub) utriform, apices obtuse or rounded, crystallization present at the apices, base usually tapered into a small pedicel, at times obtuse and non-pedicellate towards the base, slightly thick-walled, walls up to 1 μm thick, strikingly thickened at the apex or at the middle (up to 3 μm), pale greenish. Cheilocystidia 50–65 – 86 × 11–17 – 26 μm (n = 40), resemble pleurocystidia, mostly fusiform and broadly fusiform, at times cylindrical or (sub) utriform, often obtuse at the apex, sometimes slightly tapered into capitate to sub-capitate, becoming somewhat narrow towards the base, thick-walled. Hymenophoral trama 72–115 μm thick, regular, colorless, composed of thin-walled, smooth, cylindric to often inflated hyphae 10–26 μm wide, usually slightly constricted between two connected cells. Pileipellis a cutis, 87–185 μm wide, yellowish to yellowish brown in mass, composed of cylindrical and inflated hyphae, cylindrical hyphae, 6–10 μm wide, and inflated hyphae, 12–18 μm wide, thin-walled, and rough. Pileal trama 210–450 μm thick, subregularly arranged, colorless, hyphae 5–20 μm wide, smooth, thin-walled, inflated. Caulocystidia 42–60 – 75 × 10–15 – 22 μm (n = 20), mostly fusiform and lageniform, thick-walled, walls pale greenish. Stipitipellis regularly arranged, pale greenish in mass, composed of cylindrical hyphae, 7–13 μm wide, thin-walled, smooth. Oleiferous hyphae 2–5 µm wide, yellowish, diverticulate, mostly present in the pileal and stipe trama. Clamp connections present and common in all tissues.</p><p>Habitat and ecology.</p><p>Gregarious in Sophora japonica Linn. or Populus alba var. pyramidalis Bunge forests.</p><p>Distribution.</p><p>China (Beijing, Nei Mongol Autonomous Region).</p><p>Additional specimens examined.</p><p>China • Beijing: Dongcheng district, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=116.401115&amp;materialsCitation.latitude=39.884167" title="Search Plazi for locations around (long 116.401115/lat 39.884167)">Temple of Heaven</a>, alt: 40 m, 39°53'3"N, 116°24'4"E, on the ground under Sophora japonica, 6 July 2022, Li 20220706-10 A (FCAS 9884), Li 20220706-10 B (FCAS 9885) ; • Nei Mongol Autonomous Region, Chifeng City, on the campus of Chifeng University, 24 September 2020, under Populus alba var. pyramidalis Bunge, T. Z. Liu, K 30 (CFSZ 23464) , • same locality, 13 August 2021, T. Z. Liu, H 37 (CFSZ 24139), • same locality, 25 August 2021, T. Z. Liu, I 94 (CFSZ 24345), • same locality, 3 July 2022, T. Z. Liu, D 71, (CFSZ 24769), T. Z. Liu, U 77 (CFSZ 24826) .</p><p>Remarks.</p><p>In the field, I. subaeruginascens can be easily recognized by its gregarious habit, small- to medium-sized basidiomata, straw-yellow pileus, and nearly smooth, white stipe with a bluish tinge in the lower part. The bluish tinge in the stipe could be overlooked without careful observation. Microscopically, it can be distinguished by ellipsoid to subamygdaliform basidiospores and versiform, extremely abundant, thick-walled hymenial cystidia ranging from subfusiform to sublageniform.</p><p>In the multigene phylogeny, I. phari Bandini &amp; G. Bandini, recently described from Europe, is a sister to the present new species. These two species share ellipsoid to subamygdaliform basidiospores and slightly thick-walled hymenial cystidia. However, I. phari has a chestnut pileus, a pruinose stipe apex, narrower basidiospores measuring 8.3–10.9 × 4.5–5.7 µm, subutriform to subclavate often with no neck or a short neck, and an ecology in sandy dunes with Salix (Bandini et al. 2023) . Moreover, a comparison of ITS sequence data reveals a 3 % (19 / 630) difference between these two species. Inocybe tumericolor, described in the present study, has a similar outward appearance, but it has a ginger-yellow pileus, a non-blue-tinged stipe, shorter hymenial cystidia (&lt;60 µm), and a 4 % (27 / 670) sequence difference in the ITS region. Inocybe meirensongia Y. G. Fan, W. J. Yu &amp; L. S. Deng, a recently described species from northeastern China, is macroscopically similar to the new species, but the former has pinkish stipes without any bluish tint and an ecology with Pinus sylvestriformis (Takenouchi) W. C. Cheng &amp; C. D. Chu (Bhunjun et al. 2022) . Inocybe aeruginascens Babos, another phylogenetically related species, is similar in having a yellow pileus and whitish stipes with a bluish-green tint in the lower part, but it has larger basidiospores measuring 8–10 × 4.5–5.7 µm and associations with Populus, Salix, or Picea (Kuyper 1986; Ludwig 2017).</p></div>	https://treatment.plazi.org/id/3B50CF702DCD518385D9464BA7BD55F0	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	Liang, Jia-Qi;Chen, Xin;Liu, Tie-Zhi;Zhang, Yi-Zhe;Sun, Cheng-Ye;Li, Zhong-Feng;Zhong, Jia-Ju;Li, Hai-Jiao;Fan, Yu-Guang;Xu, Fei	Liang, Jia-Qi, Chen, Xin, Liu, Tie-Zhi, Zhang, Yi-Zhe, Sun, Cheng-Ye, Li, Zhong-Feng, Zhong, Jia-Ju, Li, Hai-Jiao, Fan, Yu-Guang, Xu, Fei (2026): Mixed toxin profiles in two new and one known species of Inocybe (Inocybaceae) from northern China. MycoKeys 141: 23-44, DOI: 10.3897/mycokeys.141.203741
56C7E77793E256EA86CC9A725B631BA1.text	56C7E77793E256EA86CC9A725B631BA1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Inocybe tumericolor Y. G. Fan, T. Z. Liu, Hai J. Li, F. Xu & X. Chen 2026	<div><p>Inocybe tumericolor Y. G. Fan, T. Z. Liu, Hai J. Li, F. Xu &amp; X. Chen sp. nov.</p><p>Figs 2, 3</p><p>Chinese name.</p><p>姜黄丝盖伞 (Jiāng Huáng Sī Gài Săn).</p><p>Etymology.</p><p>Referring to the turmeric-yellow color of the pileus.</p><p>Holotype.</p><p>China • Jilin Province: Changchun City, Nong’an County, in artificial plantations of Populus alba × P. berolinensis, 2 Aug. 2023, Y. G. Fan &amp; W. J. Yu, FYG 8484 (FCAS 4441) .</p><p>Diagnosis.</p><p>The new species is distinguished by a glabrous, warm yellow pileus, a whitish stipe, and lamellae that typically exceed the pileus margin. It resembles I. subaeruginascens but differs in having a stipe without blue tinges, shorter hymenial cystidia, and 4 % ITS sequence divergence.</p><p>Description.</p><p>Basidiomata small-sized. Pileus 20–30 mm diam, hemispherical to plano-convex when young to mature, broadly umbonate, margin entire to crenulated, initially incurved to uplifted when mature; surface dry, silky smooth when young, becoming fibrillose to cracked-fibrillose, but never rimulose; color uniformly warm yellow (4 A 7) or ginger yellow (4 A 8). Lamellae 0.5–1 mm wide, adnexed to decurrent, moderately crowded, ventricose, margin fibriate to undulate, unequal in length, alternately distributed with 3–4 tiers of lamellulae, pallid when young, pale yellowish (2 A 2) to yellowish brown (3 A 4) upon maturity. Stipe 30–36 × 3–3.5 mm, terete, equal, solid, slightly swollen at the apex and base; whitish (2 A 1) flocculose towards the apices, pale yellowish (3 A 3) at the middle to apex, base white (2 A 1). Context fleshy in pileus, 0.5 mm thick at mid-radius, up to 3 mm thick under the umbo, white (2 A 1) to ivory white (2 A 2), pale yellowish brown near the apex; fibrillose in the stipe, whitish (2 A 1). Odor fungoid.</p><p>Basidiospores (5.6) 7.5–8.8 – 9.2 (9.9) × (3.5) 4.5–5.1 – 5.5 (6.0) μm (n = 100 / 2 / 2), Q = (1.14) 1.50–1.66 – 1.87 (2.02), Q m ± SD = 1.66 ± 0.16, smooth, ellipsoid or amygdaliform, apiculus distinct, with intracellular circular to oblong oil inclusions, pale yellow to light yellow. Basidia 24–32 × 7–12 μm, mostly claviform to broadly claviform, hyaline, 4 - spored, sterigmata 2–5 μm length. Pleurocystidia 43–51 – 60 × 10–15 – 20 μm (n = 40), mostly broadly fusiform or lageniform, at times ventricose to (sub) utriform, apices obtuse or rounded, crystallization present at the apices, base usually tapered into a small pedicel, at times obtuse and non-pedicellate towards the base, slightly thick-walled, walls up to 1 μm thick, strikingly thickened at the middle (up to 3 μm), pale yellow-greenish. Cheilocystidia 36–41 – 52 × 10–14 – 19 μm (n = 40), resemble pleurocystidia, mostly fusiform and broadly fusiform, at times subcylindrical. Hymenophoral trama 75–130 μm thick, regularly arranged, colorless, hyphae, thin-walled, colorless, smooth, mostly slightly inflated hyphae 6–25 μm wide, cylindrical hyphae occasionally observed. Pileipellis a cutis, 75–100 μm wide, yellowish to yellowish brown in mass, composed of cylindrical and inflated (8–17 μm wide) and cylindrical hyphae (5–10 μm wide), thin-walled, and strongly encrusted. Pileal trama 350–610 μm thick, subregularly arranged, colorless, hyphae 13–25 μm wide, inflated, smooth, and thin-walled. Caulocystidia 35–45 – 70 × 11–15 – 21 μm, mostly fusiform and lageniform, thick-walled, walls pale yellow-greenish in 5 % KOH, apex crystallization, descending the entire stipe length. Stipitipellis regularly arranged, pale yellow-greenish in mass, composed of cylindrical hyphae, 4–18 μm wide, thin-walled, smooth. Oleiferous hyphae 2–6 µm wide, yellowish, diverticulate, mostly present in the stipe trama. Clamp connections present and common in all tissues.</p><p>Habitat and ecology.</p><p>Single or scattered in plantations of Populus alba × P. berolinensis .</p><p>Distribution.</p><p>China (Jilin and Nei Mongol Autonomous Region).</p><p>Additional specimens examined.</p><p>China • Jilin Province: Changchun City, Nong’an County, in artificial plantations of Populus alba × P. berolinensis, 2 Aug. 2023, Y. G. Fan &amp; W. J. Yu, FYG 8483 (FCAS 4440) ; • Nei Mongol Autonomous Region, Ulanqab City, Sumu Mountain, Xinghe County, 14 July 2020, Liu Tiezhi, Yang Xiaopo, Song Delin, A 86 (CFSZ 22446) ; • Xilingol League, Duolun County, Luanyuan Town, Dagushanzi Village, 15 July 2020, Liu Tiezhi, Yang Xiaopo, Song Delin, C 1 (CFSZ 22566), C 13 (CFSZ 22578), C 22 (CFSZ 22587) .</p><p>Remarks.</p><p>Inocybe tumericolor is an occasional species occurring from July to August in artificial plantations of Populus alba × P. berolinensis in northern China. The new species is characterized by the nearly glabrous, ginger-yellow pileus, a pallid to yellowish stipe, and moderately crowded lamellae that are usually longer than the pileus. Phylogenetically, I. tumericolor is sister to the lineage unifying I. phari and I. subaeruginascens . However, I. phari, described from Europe, has a brown to reddish-brown pileus, longer and narrower basidiospores (8.3–9.7 – 10.9 × 4.5–4.9 – 5.7 µm; Q = 1.7–2.0 – 2.3 [SD = 0.1]), an ecological association with Salix, and a 4.8 % (32 / 670) sequence difference in the ITS region (Bandini et al. 2023). Inocybe subaeruginascens, described in the present study, has a similar outward appearance, but it has a dull yellow pileus, a blue-tinged stipe base, longer hymenial cystidia (up to 86 µm in length), and a 4 % (27 / 670) sequence difference in the ITS region.</p></div>	https://treatment.plazi.org/id/56C7E77793E256EA86CC9A725B631BA1	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	Liang, Jia-Qi;Chen, Xin;Liu, Tie-Zhi;Zhang, Yi-Zhe;Sun, Cheng-Ye;Li, Zhong-Feng;Zhong, Jia-Ju;Li, Hai-Jiao;Fan, Yu-Guang;Xu, Fei	Liang, Jia-Qi, Chen, Xin, Liu, Tie-Zhi, Zhang, Yi-Zhe, Sun, Cheng-Ye, Li, Zhong-Feng, Zhong, Jia-Ju, Li, Hai-Jiao, Fan, Yu-Guang, Xu, Fei (2026): Mixed toxin profiles in two new and one known species of Inocybe (Inocybaceae) from northern China. MycoKeys 141: 23-44, DOI: 10.3897/mycokeys.141.203741
