identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
9D5CF2E7A99B584C95DD68BE40CBA634.text	9D5CF2E7A99B584C95DD68BE40CBA634.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mycena brunneocystidiata J. W. Guo, Z. W. Liu, Y. P. Ge & Q. Na 2025	<div><p>Mycena brunneocystidiata J. W. Guo, Z. W. Liu, Y. P. Ge &amp; Q. Na sp. nov.</p><p>Figs 2, 3, 4, 5</p><p>Diagnosis.</p><p>Pileus brown. Lamellae densely covered with dark brown dots, margin brown. Cheilocystidia, pleurocystidia, caulocystidia and terminal cells of stipitipellis with brownish contents. Differ from M. lammiensis by wider basidiospores (width&gt; 4 μm) and fusiform caulocystidia.</p><p>Holotype.</p><p>China • Heilongjiang Province, Mudanjiang City, Mudanfeng National Forest Park, 42°45'74"N, 128°14'41"E, 22 August 2024, Jingwen Guo, Tian Wang, Qin Na, Zengcai Liu, Ruipeng Liu, Pengyu Du, Ying Yu, and Yupeng Ge leg., FFAAS 3400 (collection no. NJ 6538) .</p><p>Etymology.</p><p>Name refers to the cheilocystidia, pleurocystidia, and caulocystidia with brown contents.</p><p>Description.</p><p>Pileus 10–36 mm in diam., plano-convex, with slightly umbo at center, margin revolute, wavy, cracked at mature; * Drab (XLVI 17 ′′′′) at center, gradually towards margin to PaMid Vinaceous-Drab (XLV 5 ′′′′ f), Pale Drab-Gray (XLVI 17 ′′′′ f) to * Drab-Gray (XLVI 17 ′′′′ d), margin * Drab (XLVI 17 ′′′′); striate * Hair Brown (XLVI 17 ′′′′ i), towards the center up to 1 / 2–2 / 3 diam .. Context White (LIII), 1.0 mm thick, fragile. Lamellae subdecurrent, 23–27 reaching the stipe, 1–3 tiers of lamellulae, White (LIII), densely covered with Deep Brownish Drab (XLV 9 ′′′′ i) dots, irregularly intervenose, stretching downward to 2 / 3–3 / 4 of the width of lamellae, edge entirely Deep Brownish Drab (XLV 9 ′′′′ i), wavy. Stipe 24–44 × 2–4 mm, central, cylindrical; apex to middle * Smoke Gray (XLVI 21 ′′′′ d) to Pale Smoke Gray (XLVI 21 ′′′′ f), base * Ecru-Drab (XLVI 13 ′′′′ d) to * Drab-Gray (XLVI 17 ′′′′ d), hollow, fragile, apex with Light Drab (XLVI 17 ′′′′ b) to * Drab (XLVI 17 ′′′′) striates, sparse White (LIII) pubescent at base. Odor and taste not distinctive.</p><p>Basidiospores (60 / 3 / 2) (5.4) 5.6– 6.3 – 6.9 (7.1) × (2.6) 2.9– 3.2 – 3.5 (4.0) μm [Q = (1.72) 1.77–2.16 (2.19), Q m = 1.97 ± 0.09] [holotype (40 / 2 / 1) 6.0– 6.5 – 6.9 (7.1) × 3.0– 3.2 – 3.5 μm [Q = (1.83) 1.89–2.15 (2.18), Q m = 2.00 ± 0.08], narrowly ellipsoid to cylindrical, colorless, smooth (1000 ×), thin-walled, amyloid. Basidia clavate, 16–21 × 5–7 μm, hyaline, thin-walled, 4 - spored, sterigmata 2–3 μm in length. Cheilocystidia fusiform with tapered apices, 36–62 × 9–14 μm (Fig. 3 G – J, Fig. 4 D 1), acicular to lanceolate, 46–84 × 10–17 μm (Fig. 3 M – P, Fig. 4 D 2), with brownish contents, thin-walled, smooth. Pleurocystidia similar to cheilocystidia, 39–72 × 8–15 μm, with brownish contents, thin-walled, smooth. Pileipellis a cutis composed of cylindrical cells, 32–121 × 3–6 μm, smooth, thin-walled; terminal cells cylindrical, apex tapering, 34–87 μm in length, apex 1–3 μm, base 3–7 μm, thin-walled, hyaline. Hypodermium formed by fusiform to subglobose hyphae, 20–72 × 12–39 μm, thin-walled, hyaline. Lamellar trama subregular, dextrinoid. Stipitipellis a cutis composed of cylindrical hyphae, 9–18 μm in diam., smooth, thin-walled; terminal cells fusiform or cylindrical, apex tapering, 31–72 × 4–8 μm, with pale brownish contents, thin-walled, smooth; caulocystidia fusiform, 33–70 × 7–13 μm, with pale brownish contents, thin-walled, smooth. Clamps present in all tissues.</p><p>Habit and habitat.</p><p>Scattered on the litter layer in Acer mono Maxim., Larix gmelinii (Ruprecht) Kuzeneva, Pinus koraiensis Siebold et Zuccarini, and Quercus mongolica Fischer ex Ledebour mixed forests during summer and autumn.</p><p>Known distribution.</p><p>Heilongjiang Province, Jilin Province, China.</p><p>Additional material examined.</p><p>China • Jilin Province, Yanbian Korean Autonomous Prefecture, Antu County, Erdaobaihe Town, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=128.24695&amp;materialsCitation.latitude=42.77861" title="Search Plazi for locations around (long 128.24695/lat 42.77861)">Back Mountain of Changbai Mountain Natural History Museum</a>, 42°46'43"N, 128°14'49"E, 17 August 2021, Zewei Liu, Qin Na, Shixin Wang, and Yupeng Ge leg., FFAAS 3401 (collection no. MY 0611) .</p><p>Notes.</p><p>Mycena brunneocystidiata is considered to be a distinct species of sect. Calodontes subsect. Marginatae J. E. Lange on account of its lamellae margins brown and cheilocystidia, pleurocystidia, and caulocystidia with brown contents (Maas Geesteranus 1992 a, 1992 b). In the subsection, M. lammiensis and M. pelianthina share the same colored lamellae margins, cheilocystidia, and pleurocystidia with purple-brown contents, but M. lammiensis differs in having larger basidiospores (7.5–9.0 × 4.0–5.0 μm) and cylindrical caulocystidia, while M. pelianthina is identified by purple-brown pileus and lacking caulocystidia (Harmaja 1985; Robich 2003; Harder et al. 2010; Aronsen and Læssøe 2016). Mycena shengshanensis resembles M. brunneocystidiata in growing on the humus layer of Larix gmelinii and having light purple-brown to brown pileus, but differs in colorless, clavate, and thick-walled cheilocystidia (Liu et al. 2022).</p><p>The main shape of cheilocystidia and pleurocystidia in FFAAS 3401 is fusiform with tapered apices (Fig. 5 A – E, K – O), but in specimen FFAAS 3400, acicular to lanceolate cheilocystidia and pleurocystidia can be observed occasionally, which are larger than the fusiform ones (Fig. 5 F – J, P – T).</p></div>	https://treatment.plazi.org/id/9D5CF2E7A99B584C95DD68BE40CBA634	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	Guo, Jingwen;Liu, Zewei;Zeng, Hui;Ge, Yupeng;Na, Qin	Guo, Jingwen, Liu, Zewei, Zeng, Hui, Ge, Yupeng, Na, Qin (2025): Three new species of Mycena sect. Calodontes (Mycenaceae, Agaricales) from Northeastern China. MycoKeys 125: 51-79, DOI: 10.3897/mycokeys.125.169722
07E18D409E3A5152B03FA94798B95305.text	07E18D409E3A5152B03FA94798B95305.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mycena roseopurpurea J. W. Guo, Z. W. Liu, Y. P. Ge & Q. Na 2025	<div><p>Mycena roseopurpurea J. W. Guo, Z. W. Liu, Y. P. Ge &amp; Q. Na sp. nov.</p><p>Figs 6, 7, 8</p><p>Diagnosis.</p><p>Pileus light pinkish-purple, light brown at center, hygrophanous when old. Cheilocystidia and pleurocystidia fusiform with tapered apices, thin-walled. Differ from M. subulata by lacking pleurocystidia and having acicular to lanceolate, thick-walled cheilocystidia.</p><p>Holotype.</p><p>China • Heilongjiang Province, Yichun City, Liangshui National Nature Reserve, 47°12'74"N, 128°52'86"E, 21 August 2021, Zewei Liu, Qin Na, Shixin Wang, and Yupeng Ge leg., FFAAS 3404 (collection no. MY 0660) .</p><p>Etymology.</p><p>Name refers to light pinkish-purple pileus.</p><p>Description.</p><p>Pileus 13–22 mm in diam., oblate hemispherical to plano-convex, with slightly depressed at center, margin wavy, occasionally cracked at mature; * Ecru-Drab (XLVI 13 ′′′′ d), Light Drab (XLVI 17 ′′′′ b) to * Drab-Gray (XLVI 17 ′′′′ d) at center, gradually towards margin to Pale Verbena Violet (XXXVI 55 ′′ f), Light Pinkish Lilac (XXXVII 65 ′′ f), Pale Grayish Vinaceous (XXXIX 9 ′′′ f), margin White (LIII); striate Pale Smoke Gray (XLVI 21 ′′′′ f), Pale Ecru-Drab (XLVI 13 ′′′′ f) to * Ecru-Drab (XLVI 13 ′′′′ d), towards the center up to 1 / 3 diam.; surface dry, hygrophanous when old. Context White (LIII), 1.0 mm thick, fragile. Lamellae sinuate to subdecurrent, 21–28 reaching the stipe, 1–3 tiers of lamellulae, White (LIII), irregularly intervenose, stretching downward to 1 / 3–3 / 4 of the width of lamellae, edge concolorous, wavy, serrated. Stipe 32–57 × 1–4 mm, central, cylindrical; apex Pale Drab-Gray (XLVI 17 ′′′′ f), Pale Vinaceous-Drab (XLV 5 ′′′′ d), Pale Brownish Drab (XLV 9 ′′′′ d), lower part Pale Purple-Drab (XLV 1 ′′′′ d), Light Purple-Drab (XLV 1 ′′′′ b) to * Ecru-Drab (XLVI 13 ′′′′ d), hollow, fragile; sparse White (LIII) pubescent at base. Odor and taste raphanoid.</p><p>Basidiospores (100 / 5 / 4) (5.6) 5.9– 6.7 – 7.4 (7.8) × 3.0– 3.5 – 3.9 (4.1) μm [Q = (1.70) 1.72–2.10, Q m = 1.90 ± 0.09] [holotype (40 / 2 / 1) (6.0) 6.2– 6.7 – 7.4 (7.7) × 3.0– 3.5 – 3.9 (4.1) μm, Q = (1.71) 1.77–2.12, Q m = 1.93 ± 0.11], narrowly ellipsoid to cylindrical, colourless, smooth (1000 ×), thin-walled, amyloid. Basidia clavate, 18–31 × 4–7 μm, hyaline, thin-walled, 4 - spored, sterigmata 2–4 μm in length. Cheilocystidia fusiform, subfusiform, with apices tapered, 35–97 × 7–18 μm, thin-walled, smooth. Pleurocystidia similar to cheilocystidia, 30–80 × 6–18 μm, thin-walled, smooth. Pileipellis a cutis composed of cylindrical cells, 29–81 × 3–11 μm, smooth, thin-walled; terminal cells cylindrical, apex tapering, 20–99 μm in length, apex 2–4 μm, base 2–9 μm, thin-walled, hyaline. Hypodermium formed by fusiform to subglobose hyphae, 20–76 × 6–37 μm, thin-walled, hyaline. Lamellar trama subregular, dextrinoid. Stipitipellis a cutis composed of cylindrical hyphae, 4–17 μm in diam., smooth, thin-walled; caulocystidia fusiform, clavate, sometimes utriform, 23–66 × 6–20 μm, thin-walled, smooth. Clamps present in all tissues.</p><p>Habit and habitat.</p><p>Scattered on the litter layers in Betula platyphylla Suk., Larix gmelinii, Pinus koraiensis, and P. syluestriformis (Takenouchi) T. Wang ex Cheng mixed forests during summer and autumn.</p><p>Known distribution.</p><p>Heilongjiang Province, Jilin Province, China.</p><p>Additional material examined.</p><p>China • Heilongjiang Province, Yichun City, Liangshui National Nature Reserve, 47°12'74"N, 128°52'56"E, 20 August 2021, Zewei Liu, Qin Na, Shixin Wang, and Yupeng Ge leg., FFAAS 3403 (collection no. MY 0635) ; • same location, 21 August 2021, Zewei Liu, Qin Na, Shixin Wang, and Yupeng Ge leg., FFAAS 3405 (collection no. MY 0668) . • Jilin Province, Yanbian Korean Autonomous Prefecture, Antu County, Erdaobaihe Town Beauty Pine Forest, 42°45'74"N, 128°14'41"E, 18 August 2021, Zewei Liu, Qin Na, Shixin Wang, and Yupeng Ge leg., FFAAS 3402 (collection no. MY 0625) .</p><p>Notes.</p><p>Mycena subulata, originally described from Heilongjiang province in China, can be easily mistaken for M. roseopurpurea due to morphological similarity, and growing on the humus layer of mixed forests of Larix gmelinii and Pinus koraiensis, but M. subulata is distinguished by acicular to lanceolate and thick-walled cheilocystidia (Liu et al. 2022). Mycena pearsoniana, while having similar stipe color and lacking pleurocystidia, differs by subfusiform or clavate cheilocystidia and inamyloid basidiospores (Smith 1947; Dennis 1970; Kost 2002; Harder et al. 2012; Aronsen and Læssøe 2016; Na 2019; Kwon et al. 2020). Mycena dura Maas Geesteranus &amp; Hauskn. and M. subcorticalis (Cooke &amp; Massee) Sacc., reported from Europe and southern Australia, resemble M. roseopurpurea; however, M. dura is distinctively characterized by its growth in grasslands and white stipe, and M. subcorticalis is distinguished by inamyloid basidiospores and gelatinized pileipellis (Saccardo 1891; Maas Geesteranus and Hausknecht 1994; Grgurinovic 2003; Olariaga et al. 2015). Mycena pura differs by having light purple to purplish-red pileus and pinkish-purple to purple stipe (Maas Geesteranus 1992 a, 1992 b; Perry 2002; Robich 2003; Thormann et al. 2006; Aronsen and Læssøe 2016; Na 2019; Okon et al. 2022; Liu 2023).</p></div>	https://treatment.plazi.org/id/07E18D409E3A5152B03FA94798B95305	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	Guo, Jingwen;Liu, Zewei;Zeng, Hui;Ge, Yupeng;Na, Qin	Guo, Jingwen, Liu, Zewei, Zeng, Hui, Ge, Yupeng, Na, Qin (2025): Three new species of Mycena sect. Calodontes (Mycenaceae, Agaricales) from Northeastern China. MycoKeys 125: 51-79, DOI: 10.3897/mycokeys.125.169722
FBB06453D7BB5059B93CE1AA68BD7753.text	FBB06453D7BB5059B93CE1AA68BD7753.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mycena rubrofusca J. W. Guo, Z. W. Liu, Y. P. Ge & Q. Na 2025	<div><p>Mycena rubrofusca J. W. Guo, Z. W. Liu, Y. P. Ge &amp; Q. Na, sp. nov.,</p><p>Figs 9, 10, 11</p><p>Diagnosis.</p><p>Pileus light reddish-brown to light grayish-brown, near margin hygrophanous. Pleurocystidia and caulocystidia absent. Differ from M. polycystidiata Z. W. Liu, Y. P. Ge, L. Zou &amp; Q. Na by having pleurocystidia and caulocystidia.</p><p>Holotype.</p><p>China • Heilongjiang Province, Mudanjiang City, Mudanfeng National Forest Park, 42°45'74"N, 128°14'41"E, 22 August 2024, Jingwen Guo, Tian Wang, Qin Na, Zengcai Liu, Ruipeng Liu, Pengyu Du, Ying Yu, and Yupeng Ge leg., FFAAS 3406 (collection no. NJ 6508) .</p><p>Etymology.</p><p>Name refers to the light reddish-brown, light grayish brown to brown pileus.</p><p>Description.</p><p>Pileus 17–26 mm in diam., hemispherical, plano-convex at mature, margin wavy; Light Drab (XLVI 17 ′′′′ b) at center, gradually towards margin to Light Vinaceous-Fawn (XL 13 ′′′ d), Pale Ecru-Drab (XLVI 13 ′′′′ f) to * Drab-Gray (XLVI 17 ′′′′ d), margin Light Drab (XLVI 17 ′′′′ b) to * Drab (XLVI 17 ′′′′); striate * Drab (XLVI 17 ′′′′), towards the center up to 1 / 8–1 / 7 diam.; surface moist, near margin hygrophanous. Context White (LIII), 1.0 mm thick, fragile. Lamellae adnexed or subdecurrent, approximately 38 reaching the stipe, 1–3 tiers of lamellulae, White (LIII), irregularly intervenose, stretching downward to 2 / 3–3 / 4 of the width of lamellae, edge concolorous, wavy. Stipe 44–45 × 2–4 mm, central, cylindrical; apex to lower part Vinaceous-Drab (XLV 5 ′′′′), Light Brownish Drab (XLV 9 ′′′′ b) to * Hair brown (XLVI 17 ′′′′ i), base Light Grayish Olive (XLVI 21 ′′′′ b), hollow, fragile; base swollen, sparse White (LIII) pubescent at base. Odor and taste faintly raphanoid.</p><p>Basidiospores (40 / 2 / 2) (5.1) 6.2– 7.4 – 8.5 (8.8) × (3.8) 4.0– 4.6 – 5.5 (5.7) μm [Q = (1.52) 1.55–1.84 (1.89), Q m = 1.69 ± 0.10] [holotype (20 / 1 / 1) (6.8) 7.2– 7.6 – 8.3 (8.5) × (3.8) 4.1– 4.6 – 4.8 (5.0) μm [Q = 1.60–1.81, Q m = 1.70 ± 0.08], ellipsoid to narrowly ellipsoid, colourless, smooth (1000 ×), thin-walled, amyloid. Basidia clavate, 16–28 × 5–8 μm, hyaline, thin-walled, 4 - spored, sterigmata 2–4 μm in length. Cheilocystidia utriform, clavate, 24–67 × 8–23 μm, thin-walled, smooth. Pleurocystidia absent. Pileipellis a cutis composed of cylindrical cells, 28–76 × 5–15 μm, smooth, thin-walled; terminal cells cylindrical, apex tapering, 33–75 μm in length, apex 2–9 μm, base 3–11 μm, thin-walled, hyaline. Hypodermium formed by fusiform to subglobose hyphae, 26–84 × 11–34 μm, thin-walled, hyaline. Lamellar trama subregular, dextrinoid. Stipitipellis a cutis composed of cylindrical hyphae, 6–16 μm in diam, smooth, thin-walled; projecting terminal cells cylindrical or fusiform, 31–73 × 4–9 μm, thin-walled, smooth, hyaline; caulocystidia absent. Clamps present in all tissues.</p><p>Habit and habitat.</p><p>Scattered on the litter layers in Fraxinus mandschurica Rupr., Pinus koraiensis, and Tilia amurensis Rupr. mixed forests during summer and autumn.</p><p>Known distribution.</p><p>Heilongjiang Province, China.</p><p>Additional material examined.</p><p>China • Heilongjiang Province, Hegang City, Taipinggou National Nature Reserve, 48°12'43"N, 130°66'04"E, 3 September 2021, Zewei Liu, Qin Na, Shixin Wang, and Yupeng Ge leg., FFAAS 3407 (collection no. MY 0793) .</p><p>Notes.</p><p>Mycena polycystidiata is the closest species to M. rubrofusca because it has a light grayish-brown to brown pileus and stipe, and utriform cheilocystidia, but M. polycystidiata has pleurocystidia and caulocystidia (Liu et al. 2022). Mycena pura, a widely distributed species in the North temperate zone, differs from M. rubrofusca by its fusiform, clavate, or subglobose cheilocystidia and pleurocystidia, and clavate or conical caulocystidia (Maas Geesteranus 1992 a, 1992 b; Perry 2002; Robich 2003; Thormann et al. 2006; Aronsen and Læssøe 2016; Na 2019; Okon et al. 2022; Liu 2023). Due to the light gray-brown to light brown pileus, M. variispora Shun Liu &amp; Biao Zhu and M. subbrunnea Shun Liu &amp; Biao Zhu are difficult to distinguish from M. rubrofusca, but they can be distinguished by the occurrence in mixed forests of Larix gmelinii and Betula platyphylla, purple lamellae, and clavate, thick-walled cheilocystidia (Liu et al. 2024). Mycena pearsoniana differs from M. rubrofusca in having purple pileus and clavate or fusiform caulocystidia (Smith 1947; Dennis 1970; Kost 2002; Harder et al. 2012; Aronsen and Læssøe 2016; Na 2019; Kwon et al. 2020). Mycena rufobrunnea Z. W. Liu, Y. P. Ge &amp; Q. Na and M. vinacea Cleland, which were reported from northeastern China and southern Australia, respectively, both resemble M. rubrofusca in having utriform cheilocystidia (Cleland 1931; Liu et al. 2022). However, both of them also have clavate cheilocystidia; M. rufobrunnea is distinguished by a light brown to reddish-brown pileus, whereas M. vinacea is characterized by cylindrical pleurocystidia and basidiospores (Cleland 1931; Liu et al. 2022).</p></div>	https://treatment.plazi.org/id/FBB06453D7BB5059B93CE1AA68BD7753	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	Guo, Jingwen;Liu, Zewei;Zeng, Hui;Ge, Yupeng;Na, Qin	Guo, Jingwen, Liu, Zewei, Zeng, Hui, Ge, Yupeng, Na, Qin (2025): Three new species of Mycena sect. Calodontes (Mycenaceae, Agaricales) from Northeastern China. MycoKeys 125: 51-79, DOI: 10.3897/mycokeys.125.169722
