identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
7DAF35171E75583AACF3829A9CE36650.text	7DAF35171E75583AACF3829A9CE36650.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mycena fulvomarginata L. N. Liu 2025	<div><p>Mycena fulvomarginata L. N. Liu sp. nov.</p><p>Figs 4, 5</p><p>Diagnosis.</p><p>Differs from the closest species,  M. rubromarginata, in having yellow lamellae edges and light-yellow contents in cheilocystidia, hyphae of the pileipellis, and stipitipellis.</p><p>Holotype.</p><p>China • Hunan Province, Suining County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=110.0575&amp;materialsCitation.latitude=26.428055" title="Search Plazi for locations around (long 110.0575/lat 26.428055)">Hunan Huangsang National Nature Reserve</a>, Shaoyang City, 26°25'41"N, 110°03'27"E, elev. 1075 m, 26 June 2021, LiNa Liu, HUIF 50088 (collection number NN 88).</p><p>Etymology.</p><p>Refers to the yellow color of the lamellae edges.</p><p>Description.</p><p>Pileus 4–8 mm diam., hemispherical when young, paraboloid or campanulate with age, sulcate, pellucid-striate, pruinose, apex with obtuse umbo, the margin infrequently out of flatness, dark reddish brown (7 C 8) at center, gradually becoming paler towards the margin to light brown (7 A 6), turning purple (12 B 5) with age. Context white, thin, fragile. Lamellae 10–12 reach the stipe, with 1 tier of lamellulae, adnexed, white (4 A 1), edge yellow (5 B 7), stipe 6.0–12.0 × 0.5–1.0 mm, central, cylindrical, hollow, fragile, finely white pruinose and pubescent, pale brown (6 D 7) to brown (6 F 7), fading to purple (12 B 5). Base slightly bulbous, covered with white fibrils. Odor and taste indistinctive.</p><p>Basidiospores (7.8) 7.9–9.9 (10.0) × (4.5) 5.7–8.0 (8.2) μm, Q = 1.2–1.7, Q = 1.3 ± 0.1, subglobose to broadly ellipsoid, hyaline, smooth, thin-walled, amyloid. Basidia 24.8–33.5 × 8.2–13.5 μm, 4 - spored, clavate. Cheilocystidia 22.6–45.8 × 7.7–17.8 μm, abundant, fusiform to ventricose, clavate, subcylindrical, or somewhat irregularly shaped, smooth or covered with one or more apical simple to furcate excrescences, with light yellow contents. Pleurocystidia absent. Hyphae of the pileipellis 3.0–9.0 μm wide, covered with simple to much-branched excrescences, 2.0–6.0 × 2.0–4.0 μm, with light yellow contents. Hyphae of the stipitipellis 2.0–5.0 μm wide, covered with numerous simple to furcate cylindrical excrescences, 2.0–11.0 × 2.0–8.0 μm, with light yellow contents. Clamp connections are present in the basidia, pileipellis, and stipitipellis hyphae.</p><p>Habitat.</p><p>Gregarious on moss-covered bark of living deciduous trees.</p><p>Known distribution.</p><p>Hunan Province and Guangxi Zhuang Autonomous Region, China.</p><p>Additional materials examined.</p><p>China • Guangxi Zhuang Autonomous Region, Baise City, Leye County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=106.33584&amp;materialsCitation.latitude=24.774721" title="Search Plazi for locations around (long 106.33584/lat 24.774721)">Yachang Orchid National Nature Reserve</a>, 24°46'29"N, 106°20'09"E, elev. 1080 m, 24 April 2024, LiNa Liu, HUIF 50089 (collection number NN 89)  .</p><p>Notes.</p><p>Mycena fulvomarginata belongs to sect. Rubromarginatae Singer ex. Maas Geest. due to the very small basidiomata, yellow lamellar edges, cheilocystidia with colored contents, diverticular pileipellis, and stipitipellis hyphae, along with exhibiting a growth habit on decaying wood.  Mycena fulvomarginata is similar to the species described in this section:  M. rubromarginata (Fr.) P. Kumm.,  M. seynii Quél., and  M. bulliformis B. A. Perry &amp; Desjardin. They resemble  M. fulvomarginata in the shape of their cheilocystidia, are covered with excrescences on the pileipellis and stipe cortical hyphae, and have a similar brown pileus. However,  M. rubromarginata differs in that it has longer pileipellis excrescences, up to 36 μm, and cheilocystidia that are 20–65 (up to 90) μm long, with reddish-brown contents (Robich 2003; Aronsen and Læssøe 2016).  Mycena seynii should be easy to separate from the new species by its medium basidiomata, larger basidiospores measuring 10.5–15.0 × 6.0–7.5 μm, reddish-purple edge, larger cheilocystidia measuring 30–85 × 8–16 μm, pileipellis, and stipitipellis hyphae with brown to dark red granular contents (Robich 2003; Aronsen and Læssøe 2016). In addition,  M. bulliformis differs from  M. fulvomarginata by its violet to violet-brown edges, ellipsoid to broadly ellipsoid spores, and some smooth pileipellis hyphae (Perry and Desjardin 2016).</p></div>	https://treatment.plazi.org/id/7DAF35171E75583AACF3829A9CE36650	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	Xiao, Ying Xin;Liu, Li Na;Tan, Zhu Ming;Shen, Ai Rong;Shen, Bao Ming;Tan, Yun;Li, Sai Nan;Feng, Li Guo;Long, Jing Bo;Liu, Zhu Xiang	Xiao, Ying Xin, Liu, Li Na, Tan, Zhu Ming, Shen, Ai Rong, Shen, Bao Ming, Tan, Yun, Li, Sai Nan, Feng, Li Guo, Long, Jing Bo, Liu, Zhu Xiang (2025): Additions to the genus Mycena (Mycenaceae, Agaricales): Descriptions of five new taxa in Hunan Province, China. MycoKeys 115: 327-362, DOI: 10.3897/mycokeys.115.144137
14E4D78CD4A059D483D818071AFBDBD8.text	14E4D78CD4A059D483D818071AFBDBD8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mycena hongfengensis L. N. Liu 2025	<div><p>Mycena hongfengensis L. N. Liu sp. nov.</p><p>Figs 6, 7</p><p>Diagnosis.</p><p>Differs from  M. castaneicola in having smooth cheilocystidia, dermatocysts present in the pileipellis, and stipitipellis hyphae.</p><p>Holotype.</p><p>China • Hunan Province, Xiangxi Tujia-Miao Autonomous Prefecture, Jishou City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=109.67916&amp;materialsCitation.latitude=28.273056" title="Search Plazi for locations around (long 109.67916/lat 28.273056)">Hongfeng Forest Park</a>, 28°16'23"N, 109°40'45"E, elev. 230 m, 22 April 2024, ZhuXiang Liu, JSU 114 (collection number JD 114).</p><p>Etymology.</p><p>Refers to the Hongfeng Forest Park, from where the holotype was collected.</p><p>Description.</p><p>Pileus 2–5 mm diam., hemispherical when young, becoming nearly campanulate or plano-convex with age, with a centrally flattened depression, margin smooth, sulcate, translucently striate, pure white (4 A 1), white pubescent. Context pure white, thin, fragile. Lamellae 16–18 reach the stipe, with 1–2 tiers of lamellulae, narrowly free, pure white (4 A 1), concolorous with the sides. Stipe 15–40 × 0.1–0.5 mm, almost equal or slightly expanding towards the base, hollow, white (4 A 1) to greyish-white (4 B 1), pubescent or puberulous, base swollen. With a not well-developed basal disc, covered with white hirsute. Odor and taste not distinctive.</p><p>Basidiospores (6.2) 6.3–7.6 (7.7) × (3.4) 3.5–4.9 (5.2) μm, Q = 1.4–2.0, Qm = 1.7 ± 0.2, oblong or pip-shaped, hyaline, thin-walled, amyloid. Basidia 8–16 × 4–8 μm, two- and four-spored, clavate, hyaline. Cheilocystidia 11–43 × 5–9 μm, obpyriform, fusiform, ventricose, filiform, with a long neck, up to 25 μm, with an acute and occasionally branched apex, hyaline. Pleurocystidia absent. Pileipellis hyphae 2–13 μm wide, hyphae cylindrical, densely covered with warts and cylindrical excrescences, 1.0–6.0 × 1.0–2.0 μm, with irregularly cylindric to strangulated dermatocysts, 63–200 × 7–20 μm, walls 1.0–2.0 μm, greenish grey (1 C 2). Hyphae of the stipitipellis 1.0–6.0 μm wide, smooth, dermatocysts numerous, clavate to pyriform, 50–320 × 5–20 μm, long, flexuous, filiform, simple, and tapering towards the apex. Clamp connections are absent in the basidia, pileipellis, and stipitipellis hyphae.</p><p>Habitat.</p><p>Gregarious on decaying leaves of deciduous trees.</p><p>Known distribution.</p><p>Xiangxi Tujia-Miao Autonomous Prefecture, Hunan Province.</p><p>Additional materials examined.</p><p>China • Hunan Province, Xiangxi Tujia-Miao Autonomous Prefecture, Jishou City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=109.68&amp;materialsCitation.latitude=28.27389" title="Search Plazi for locations around (long 109.68/lat 28.27389)">Hongfeng Forest Park</a>, 28°16'26"N, 109°40'48"E, elev. 255 m, 22 April 2024, ZhuXiang Liu, JSU 121 (collection number JD 121)  .</p><p>Notes.</p><p>Mycena hongfengensis is characterized by its pure white basidiomata, free lamellae, oblong to pip-shaped spores, and the presence of dermatocysts in the pileipellis and stipitipellis. According to the Maas Geesteranus classification, the new species could belong to an uncertain position. When we first found this specimen in the field, we thought it might be a member of either sect.  Saccharifera or sect. Amparoina. All species in two sections have a white basidiomata, pubescent pileus and stipe, and stipe with a basic disc (Maas Geesteranus 1983; Desjardin 1995; Na and Bau 2019 b). However,  M. hongfengensis can be clearly distinguished from other species through microscopic characteristics. The presence of dermatocysts in the pileipellis and stipitipellis is the most important characteristic for separating  M. hongfengensis from species of sect. Sacchariferae and sect. Amparoina.  Mycena castaneicola T. Bau &amp; Q. Na is the most similar to the new species in the macroscopic characteristics, but the microscopic features differ significantly. Sequences labeled as  Mycena sp., which were extracted from the host  Myrica rubra (Lour.) Siebold &amp; Zucc. and originated from Japan, along with the sequence of  M. hongfengensis, formed a well-supported lineage in the phylogenetic analysis (BS / BP = 100 / 1.00). We are very fortunate to have collected  Mycena sp. in the field. However, we only collected one tiny basidioma; the microscopic structures we observed are not comprehensive. Both taxa have white pileus and pubescent pileus and stipe. The uncertain  Mycena species differs in pileipellis, which has “ acanthocysts ” that are spherical or vesicular and covered with spines. These features can be used to easily differentiate the two species.</p></div>	https://treatment.plazi.org/id/14E4D78CD4A059D483D818071AFBDBD8	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	Xiao, Ying Xin;Liu, Li Na;Tan, Zhu Ming;Shen, Ai Rong;Shen, Bao Ming;Tan, Yun;Li, Sai Nan;Feng, Li Guo;Long, Jing Bo;Liu, Zhu Xiang	Xiao, Ying Xin, Liu, Li Na, Tan, Zhu Ming, Shen, Ai Rong, Shen, Bao Ming, Tan, Yun, Li, Sai Nan, Feng, Li Guo, Long, Jing Bo, Liu, Zhu Xiang (2025): Additions to the genus Mycena (Mycenaceae, Agaricales): Descriptions of five new taxa in Hunan Province, China. MycoKeys 115: 327-362, DOI: 10.3897/mycokeys.115.144137
8A3EBB1DC5245FF6A5CF51298A3561DB.text	8A3EBB1DC5245FF6A5CF51298A3561DB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mycena huangsangensis L. N. Liu 2025	<div><p>Mycena huangsangensis L. N. Liu sp. nov.</p><p>Figs 2, 3</p><p>Diagnosis.</p><p>Differs from the most similar species,  M. alniphila, by its decurrent lamellae and longer basidiospores.</p><p>Holotype.</p><p>China • Hunan Province, Shaoyang City, Suining County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=110.09361&amp;materialsCitation.latitude=26.404999" title="Search Plazi for locations around (long 110.09361/lat 26.404999)">Hunan Huangsang National Nature Reserve</a>, 26°24'18"N, 110°05'37"E, elev. 644 m, 24 April 2024, LiNa Liu, HUIF 50526 (collection number NN 526).</p><p>Etymology.</p><p>Refers to the Huangsang National Nature Reserve, from where the holotype was collected.</p><p>Description.</p><p>Pileus 1–5 mm diam., hemispherical to obtusely conical, expanding with age, umbilicate or depressed center, sulcate, translucent-striate, pruinose and pubescent, light brown (6 B 4–6 B 7) to dark brown (6 E 7–6 E 8), or brownish-pink (7 A 4–7 B 4), paler brown towards margin. Context white, thin, fragile. Lamellae 9–11 reach the stipe, with 1–2 tiers of lamellulae, decurrent, white (4 A 1) to brown (7 D 7), edge concolorous with face. Stipe 6–25 × 1–2 mm, cylindrical, hollow, fragile, light brown (6 B 4–6 B 7) to brown (6 E 5–6 E 8) at the base, gradually becoming paler to white (4 A 1) towards the apex. Base covered with white fibrils. Odor and taste indistinctive.</p><p>Basidiospores 6.0–7.4 (7.8) × (3.2) 3.4–4.2 (4.3) μm, Q = 1.4–2.1, Q = 1.8 ± 0.2, pip-shaped, elongated, hyaline, smooth, thin-walled, amyloid. Basidia 15.4–20.9 × 6.2–9.0 μm, 4 - spored, clavate. Cheilocystidia 13.2–25.0 × 8.5–19.9 μm, abundant, clavate to obpyriform, covered with fairly numerous, simple to furcate, cylindrical excrescences. 1.2–9.5 × 0.5–1.4 μm. Pleurocystidia absent. Hyphae of the pileipellis 12–27 μm wide, densely covered with warts or short cylindrical excrescences. Hyphae of the stipitipellis 1.0–3.0 μm wide, densely covered with simple, cylindrical excrescences 1.0–3.2 × 0.8–1.5 μm. Clamp connections are present in the basidia, pileipellis, and stipitipellis hyphae.</p><p>Habitat.</p><p>Gregarious on decaying leaves of deciduous trees.</p><p>Known distribution.</p><p>Shaoyang City, Hunan Province.</p><p>Additional materials examined.</p><p>China • Hunan Province, Shaoyang City, Suining County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=110.09334&amp;materialsCitation.latitude=26.405832" title="Search Plazi for locations around (long 110.09334/lat 26.405832)">Hunan Huangsang National Nature Reserve</a>, 26°24'21"N, 110°05'36"E, elev. 675 m, 24 April 2024, LiNa Liu, HUIF 50528 (collection number NN 528)  .</p><p>Notes.</p><p>Mycena huangsangensis can be considered to be a member of sect.  Polyadelphia owing to very small basidiomata, a small number of lamellae, and a slender stipe and hyphae of the pileipellis, which are ornamented with short warts.  Mycena huangsangensis belongs to the section with a brownish pileus, while  M. alniphila Robich shows the most significant morphological similarity to  M. huangsangensis . They have similar basidiomata color and shape of cheilocystidia, pileipellis hyphae densely covered with cylindrical excrescences, and diverticulate stipitipellis hyphae. However,  M. alniphila differs in having adnate lamellae, slightly longer spores measuring 8.5–11.0 × (3.5) 4.0–5.5 μm, simple cheilocystidia without branching, and caulocystidia present (Robich 2003).  Mycena albiceps and  M. catalaunica Robich are somewhat similar to the new species; in particular, they share the same basidiomata shape and similar habitats.  Mycena albiceps differs in the white colors of the pileus and black stipe (Gilliam 1976; Maas Geesteranus 1986). The latter,  M. catalaunica, has a pale violaceous pink to pale vinaceous pink pileus, subglobose spores, and caulocystidia; the clamp connection is absent in all tissues, and cheilocystidia are subglobose (Robich 2003).</p></div>	https://treatment.plazi.org/id/8A3EBB1DC5245FF6A5CF51298A3561DB	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	Xiao, Ying Xin;Liu, Li Na;Tan, Zhu Ming;Shen, Ai Rong;Shen, Bao Ming;Tan, Yun;Li, Sai Nan;Feng, Li Guo;Long, Jing Bo;Liu, Zhu Xiang	Xiao, Ying Xin, Liu, Li Na, Tan, Zhu Ming, Shen, Ai Rong, Shen, Bao Ming, Tan, Yun, Li, Sai Nan, Feng, Li Guo, Long, Jing Bo, Liu, Zhu Xiang (2025): Additions to the genus Mycena (Mycenaceae, Agaricales): Descriptions of five new taxa in Hunan Province, China. MycoKeys 115: 327-362, DOI: 10.3897/mycokeys.115.144137
E49450B855CD54CABE0CF7E345C98D68.text	E49450B855CD54CABE0CF7E345C98D68.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mycena roseolamellata L. N. Liu 2025	<div><p>Mycena roseolamellata L. N. Liu sp. nov.</p><p>Figs 10, 11</p><p>Diagnosis.</p><p>Differs from  M. pura in having a brown pileus and pink lamellae.</p><p>Holotype.</p><p>China • Hunan Province, Ningxiang City, Biandan’ao, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=112.54528&amp;materialsCitation.latitude=28.201944" title="Search Plazi for locations around (long 112.54528/lat 28.201944)">Lijingpu Subdistrict</a>, 28°12'07"N, 112°32'43"E, elev. 110 m, 28 November 2023, ShengQiang Liu, HUIF 60001 (collection number NN 601).</p><p>Etymology.</p><p>Refers to the pink colors of lamellae.</p><p>Description.</p><p>Pileus 7–17 mm diam., parabolic when young, then campanulate or broadly conical with age, apex with an obtuse umbo, sulcate, translucent-striate, glabrous, dark brown (6 F 5–6 F 8) at first, then turning pale brownish yellow (6 A 4) to pale brown (6 E 4) with age, margin brownish white (6 A 2) to pale brown (6 D 4–6 D 6). Context white, fragile, thin. Lamellae 24–26 reach the stipe, with 1–2 tiers of lamellulae, adnate or slightly adnex, white (4 A 1) when young, pinkish to light pink (9 A 3–9 A 2) at maturity, concolorous with faces. Stipe 29–30 × 2.0–3.0 mm, central, cylindrical, hollow, dark brown (6 F 5-6 F 8), pale brownish yellow (6 A 4) to pale brown (6 D 7) with age, base covered with long, dense, white fibrils. Odor and taste indistinctive.</p><p>Basidiospores (8.3) 8.6–10.8 (11.5) × (5.3) 5.4–6.3 (6.4) μm, Q = 1.5–2.0, Q = 1.7 ± 0.1, ellipsoid to elongated, hyaline, smooth, thin-walled, amyloid. Basidia 21.7–30.8 × 6.8–8.9 μm, 2 - spored, clavate. Cheilocystidia 26.7–84.9 × 8.6–18.7 μm, abundant, fusiform, ventricose-rostrate, obtuse apex, base tapered, with short to long stalk, smooth, hyaline, amyloid, thin-walled. Pleurocystidia similar to cheilocystidia, 52.3–105.7 × 12.3–20.9 μm. Pileipellis 1.0–6.0 μm wide, smooth, terminal hyphae sometimes diverticulate, 1.0–6.0 × 1.0–2.0 μm. Stipitipellis 2.0–5.0 μm, smooth, terminal hyphae sometimes diverticulate, 1.0–4.0 × 1.0–2.0 μm. Clamp connections are absent in the basidia, pileipellis, and stipitipellis hyphae.</p><p>Habitat.</p><p>Gregarious on decayed twigs of bamboo or woody debris of deciduous trees.</p><p>Known distribution.</p><p>Ningxiang City, Hunan Province.</p><p>Additional materials examined.</p><p>China • Hunan Province, Ningxiang City, Biandan’ao, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=112.54528&amp;materialsCitation.latitude=28.201944" title="Search Plazi for locations around (long 112.54528/lat 28.201944)">Lijingpu Subdistrict</a>, 28°12'07"N, 112°32'43"E, elev. 110 m, 22 December 2023, ShengQiang Liu, HUIF 60002 (collection number NN 602)  .</p><p>Notes.</p><p>Mycena roseolamellata is classified into sect.  Calodontes based on the smooth cheilocystidia and stipitipellis. Microscopically,  M. pura (Pers.) P. Kumm. is the most similar to  M. roseolamellata; however,  M. pura is distinguished from  M. roseolamellata by its purple pileus with pinkish or brown tints, lamellae interveined with age, the presence of clamp connections in all tissues, and the absence of a root-like, pruinose stipe (Robich 2003; Aronsen and Læssøe 2016).  Mycena rosea Gramberg is somewhat similar to  M. roseolamellata; they have pink lamellae, smooth cheilocystidia, and pleurocystidia.  Mycena rosea can be distinguished from  M. roseolamellata by having a pink pileus with a dull yellow center, a white or pink stipe, and the presence of clamp connections in all tissues (Robich 2003; Aronsen and Læssøe 2016).  Mycena roseolamellata is very different from any species of sect.  Calodontes, owing to its brown pileus.  Mycena galericulata (Scop.) Gray shares some similarities with  M. roseolamellata in terms of pileus color, but  M. galericulata is differentiated by the presence of non-smooth cheilocystidia, pileipellis, and stipitipellis (Maas Geesteranus 1992 a, 1992 b).</p></div>	https://treatment.plazi.org/id/E49450B855CD54CABE0CF7E345C98D68	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	Xiao, Ying Xin;Liu, Li Na;Tan, Zhu Ming;Shen, Ai Rong;Shen, Bao Ming;Tan, Yun;Li, Sai Nan;Feng, Li Guo;Long, Jing Bo;Liu, Zhu Xiang	Xiao, Ying Xin, Liu, Li Na, Tan, Zhu Ming, Shen, Ai Rong, Shen, Bao Ming, Tan, Yun, Li, Sai Nan, Feng, Li Guo, Long, Jing Bo, Liu, Zhu Xiang (2025): Additions to the genus Mycena (Mycenaceae, Agaricales): Descriptions of five new taxa in Hunan Province, China. MycoKeys 115: 327-362, DOI: 10.3897/mycokeys.115.144137
164BC7F6F4A156928D36C9EE068BE02C.text	164BC7F6F4A156928D36C9EE068BE02C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mycena subroriduliformis L. N. Liu 2025	<div><p>Mycena subroriduliformis L. N. Liu sp. nov.</p><p>Figs 8, 9</p><p>Diagnosis.</p><p>Differs from  M. surculosa in having a viscid pileus and stipe.</p><p>Holotype.</p><p>China • Hunan Province, Suining County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=110.08889&amp;materialsCitation.latitude=26.413055" title="Search Plazi for locations around (long 110.08889/lat 26.413055)">Hunan Huangsang National Nature Reserve</a>, Shaoyang City, 26°24'47"N, 110°05'20"E, elev. 542 m, 25 April 2024, LiNa Liu, HUIF 50540 (collection number NN 540).</p><p>Etymology.</p><p>Refers to the viscid pileus and stipe of the new species.</p><p>Description.</p><p>Pileus 2–8 mm diam., hemispherical when young, campanulate with age, with obvious depression at the center, sulcate, translucent-striate, surface wet, glabrous, brownish white (7 A 1), light brown (7 C 3), brownish grey (7 D 1–6 D 2) when old. Context white, thin, and fragile. Lamellae 18–20 reach the stipe, with 1–2 tiers of lamellulae, decurrent, white (4 A 1), concolorous with the sides. Stipe 2–45 × 1–2 mm, cylindrical, hollow, fragile, surface glutinous, white (4 A 1) to brownish grey (5 A 1–5 D 3) towards the apex, light brown to brown (5 D 6–6 D 6) towards the base, base swollen. Odor and taste indistinctive.</p><p>Basidiospores (6.2) 6.6–8.5 (9.0) × (3.6) 3.8–5.2 (5.3) μm, Q = 1.5–2.1, Q = 1.7 ± 0.1, pip-shaped, cylindrical, hyaline, amyloid, smooth. Basidia 19.3–26.9 × 5.6–8.0 μm, 4 - spored, clavate, hyaline. Cheilocystidia 16.8–26.9 × 6.3–17.1 μm, abundant and variably shaped, clavate to cylindrical with short, more or less branched projections, 1.0–6.0 × 1.0–2.0 μm, thin-walled, hyaline. Pleurocystidia absent. Pileipellis hyphae somewhat gelatinized, 2.0–5.0 μm wide, with irregular simple to branched warts or cylindrical excrescences, 1.0–4.0 × 1.0–2.0 μm. Hyphae of the stipitipellis 1.0–6.0 μm wide, covered with cylindrical excrescences. 1.0–4.0 × 1.0–2.0 μm. Clamp connections are present in the basidia, pileipellis, and stipitipellis hyphae.</p><p>Habitat.</p><p>Gregarious on decaying leaves of deciduous trees.</p><p>Known distribution.</p><p>Shaoyang City, Hunan Province.</p><p>Additional materials examined.</p><p>China • Hunan Province, Suining County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=110.09028&amp;materialsCitation.latitude=26.410833" title="Search Plazi for locations around (long 110.09028/lat 26.410833)">Hunan Huangsang National Nature Reserve</a>, Shaoyang City, 26°24'39"N, 110°05'25"E, elev. 588 m, 25 April 2024, LiNa Liu, HUIF 50546 (collection number NN 546)  .</p><p>Notes.</p><p>The following characteristics placed this new species in the sect. Insignes Maas G. due to the viscid pileus and stipe, decurrent lamellae, pip-shaped spores, clavate cheilocystidia with coarse excrescences, hyphae of the pileipellis embedded in gelatinous matter, and diverticulate (Maas Geesteranus 1989). The three other similar species in sect. Insignes are  M. surculosa Maas G. &amp; de Meijer,  M. odorifera (Peck) Sacc., and  M. calceata Robich. All are differentiated from  M. subroriduliformis as follows:  M. surculosa has a dry pileus, with only the stipe being viscid. The apical side branches of the pileipellis are densely covered and simple to forked, with cylindrical excrescences. The stipitipellis is somewhat gelatinized (Maas Geesteranus and De Meijer 1997).  Mycena odorifera has a distinctive alkaline-like odor, a pruinose stipe, pubescence, and cheilocystidia occasionally with forked apices (Smith 1935).  Mycena calceata has dark brown basidiomata and relatively large spores (11.0–13.5 × 5.5–8.0 μm), smooth cheilocystidia, or one or two branches at the apex (Robich 2003).</p></div>	https://treatment.plazi.org/id/164BC7F6F4A156928D36C9EE068BE02C	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	Xiao, Ying Xin;Liu, Li Na;Tan, Zhu Ming;Shen, Ai Rong;Shen, Bao Ming;Tan, Yun;Li, Sai Nan;Feng, Li Guo;Long, Jing Bo;Liu, Zhu Xiang	Xiao, Ying Xin, Liu, Li Na, Tan, Zhu Ming, Shen, Ai Rong, Shen, Bao Ming, Tan, Yun, Li, Sai Nan, Feng, Li Guo, Long, Jing Bo, Liu, Zhu Xiang (2025): Additions to the genus Mycena (Mycenaceae, Agaricales): Descriptions of five new taxa in Hunan Province, China. MycoKeys 115: 327-362, DOI: 10.3897/mycokeys.115.144137
