taxonID	type	description	language	source
286487CCFFC0FF86FF2BFA71FFBEFD29.taxon	description	(FIGURE 1)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC0FF86FF2BFA71FFBEFD29.taxon	materials_examined	Index Fungorum number: IF 558463	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC0FF86FF2BFA71FFBEFD29.taxon	etymology	Etymology: — Named in honour of British mycologist, K. D. Hyde for his immense contributions to mycology	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC0FF86FF2BFA71FFBEFD29.taxon	materials_examined	Holotype: — GMB 0028	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC0FF86FF2BFA71FFBEFD29.taxon	description	Saprobic on decaying wood. Asexual morph Hyphomycetous. Conidiophores 60 – 110 × 8 – 12 µm (x ̅ = 78.6 × 9.8 µm, n = 30), macronematous, mononematous, erect, solitary or in small groups on compactly aggregated cells, simple, cylindrical, smooth, brown, straight or slightly flexuous, percurrently proliferate 2 – 3 times, 1 – 2 - septate. Conidiogenous cells holoblastic, integrated, terminal, cylindrical, smooth, pale brown. Conidia 35 - 50 × 20 - 30 µm (x ̅ = 41.2 × 25.5 µm, n = 30), acrogenous, solitary, simple, smooth, ellipsoidal to obovoid, hyaline to subhyaline when young, dark brown when mature, with obvious septa in young conidia, paler at basal cell, truncate at base, sometimes covered by a hyaline mucilaginous sheath. Sexual morph Undetermined.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC0FF86FF2BFA71FFBEFD29.taxon	materials_examined	Material examined: — CHINA, Guizhou Province, Guiyang, Gaopo Township, Raorao village (106 ° 48 ’ 6.54 ” E, 26 ° 19 ’ 3.46 ” N), on decaying submerged wood, 9 th December 2019, Nalin N. Wijayawardene, Q. R Li, (GMB 0028, holotype, NNW 56, isotype). LSU: MW 797122, SSU MW 800164, ITS MW 797039 (Supplementary Table 1)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC0FF86FF2BFA71FFBEFD29.taxon	description	Known distribution: — Guizhou Province, China	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC0FF86FF2BFA71FFBEFD29.taxon	discussion	Notes: — Yang et al. (2016) introduced the genus Mucispora Jing Yang et al. with M. obscuriseptata J. Yang et al. as the type species. Besides the type species, the genus comprises two species viz. M. phangngaensis J. Yang & K. D. Hyde (Yang et al. 2017) and M. infundibulata J. Yang & K. D. Hyde (Hyde et al. 2020). All these species have been reported from submerged plant materials in Southern Thailand (Prachuap Khiri Khan Province and Phang Nga Province). In morphology, Mucispora closely resembles Melanocephala but it is specific in its cupulate proliferating conidiogenous cells and its conidia bearing a central downwardly directed collar with a fimbriate margin’ (Hughes 1979; Yang et al. 2017). Our new collection did not germinate in different media (WA, PDA, MEA) and in different temperatures thus we extracted DNA directly from the fruiting body (Zeng et al. 2018). PCR amplification of ITS (ITS 4 / ITS 5), LSU (primers: LR 5 / LROR) and SSU (primers: NS 1 / NS 4) were successful. Phylogenetic analyses of combined LSU and ITS genes (Fig. 2) that our new strain is distinct from other taxa. However, the separation value is medium (69 % in ML) and PP value is low. Nevertheless, morphological characters, of our collection is well-distinct from other Mucispora species (Table 2). Hence, we introduce the fourth species of the genus, Mucispora hydei. This is the first record of the genus outside Thailand.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC6FF84FF2BF927FD08FD1A.taxon	description	(FIGURE 3)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC6FF84FF2BF927FD08FD1A.taxon	materials_examined	Index Fungorum Number: IF 519747	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC6FF84FF2BF927FD08FD1A.taxon	description	Foliicolous, the host plant is Quercus palustris. Sexual morph: Undetermined. Asexual morph: coelomycetous. Conidiomata 354 – 522 μm (x = 427 μm, n = 5) diameter, 287 μm high, conspicuous, pycnidial, subglobose to sometimes lenticular in section view, semi-immersed, scattered, unilocular, with relatively thin stromatic base, black, glabrous. Beak of conidiomata long, 384 μm long, 13 – 61 μm wide. Peridium 18 – 42 μm wide (upper wall 25 – 42 μm (x = 33 μm, n = 7) wide; basal wall 18 – 26 μm (x = 27 μm, n = 7) wide), composed of 4 – 7 layers, with outer 3 – 5 layers light brown and inner layer hyaline, composed of thin-walled cells of textura angularis. Conidiophores up to 45 μm long, cylindrical, branched. Conidia 15.4 – 17 × 2.6 – 3.3 μm (x = 16.1 × 3 μm, n = 10), cylindrical to subcylindrical, slightly curved, 3 - septate, hyaline, with an appendage at both ends; basal cell 2 – 2.8 μm long (x = 2.5 μm, n = 10), obconic, truncate at the base; 2 median cells 10.5 – 12.2 μm long (x = 11.3 μm, n = 10), cylindrical (second cell from the base 4.7 – 6.6 μm long (x = 5.6 μm, n = 10), third cell 4.6 – 6.7 μm long (x = 5.7 μm, n = 10 )); apical cell 1.7 – 3.1 μm long (x = 2.7 μm, n = 10). Appendage single, cellular, unbranched, filiform, flexuous or straight appendage; apical appendage 7.9 – 9.1 × 0.8 – 1.1 μm (x = 8.7 × 1 μm, n = 6); basal appendage 7.8 – 9.3 × 0.7 – 1.1 μm (x = 8.5 × 0.9 μm, n = 6).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC6FF84FF2BF927FD08FD1A.taxon	materials_examined	Material examined: — CHINA, Yunnan Province, Dali; 25 ° 43 ′ 27 ″ N 100 ° 6 ′ 54 ″ E, 2260 m alt.; 11 August 2019; Hai-Xia Wu leg; collected on a fallen leaf of Quercus palustris (IFRD 500 - 20) (new country record).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC6FF84FF2BF927FD08FD1A.taxon	biology_ecology	Known hosts and distribution (based on molecular data): — Thailand, Yunnan China	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC6FF84FF2BF927FD08FD1A.taxon	discussion	Notes: — The genus, Immersidiscosia Kaz. Tanaka et al. (2011) was introduced by Tanaka et al. (2011) with I. eucalypti as the type species. The genus, morphologically resembles Discosia but phylogenetically distinct. Immersidiscosia eucalypti was reported from both temperate and tropical countries such as France, Italy, Japan and Tunisia (Tanaka et al. 2011; Hyde et al. 2017; Wijayawardene et al. 2017; Farr & Rossman 2021). This is the first report of I. eucalypti in China. Further collections are essentially required to study whether this taxon is pathogenic on Quercus species.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC4FF8AFF2BFF4BF8CEFB2E.taxon	description	(FIGURE 4)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC4FF8AFF2BFF4BF8CEFB2E.taxon	materials_examined	Index Fungorum Number: IF 250075	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC4FF8AFF2BFF4BF8CEFB2E.taxon	description	Description. Saprobic on dead twigs, dark brown, effuse, velvety. Sexual morph: Undetermined. Asexual morph: Mycelium immersed, composed of branched, septate, thick-walled hyphae. Conidiophores mononematous, macronematous, mostly unbranched, proliferating, dark brown, 96 – 296 × 5 – 7 µm (x ̅ = 153 × 6 µm, n = 10), 7 – 12 septate, erect or flexuous, tapering towards apex, bulbous at base with cells near apex of conidiophore guttulate and fertile. Conidiogenous cells polytretic integrated, intercalary and terminal. Conidia 99 – 131 × 20 – 36 µm (x ̅ = 115 × 28 µm, n = 20) single, obclavate, pale brown to brown, 6 – 9 distoseptate, smooth, straight or curved, base slightly truncate, cicatrized and wider than apex, dark brown, apical cell paler than other cells, rounded at apex, guttulate when young, non-guttulate at maturity. Culture characteristics: Colonies on PDA, reaching 21 mm diam., after 2 weeks at 20 – 25 oC, medium dense, circular to slightly irregular, slightly raised and cottony surface, colony from above: at first white, becoming buff; from below: blackish white at the margin, black to ash at the center; mycelium blackish.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC4FF8AFF2BFF4BF8CEFB2E.taxon	materials_examined	Material examined: CHINA, Guizhou Province, Huaxi District, Guizhou university garden (South), on a dead branch of Platanus sp., 05 October 2019, Nalin N. Wijayawardene, NWGUP 01 (HKAS 107064, new host record, a new record from Guizhou Province), ex-type living culture, KUMCC 20 – 0029	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC4FF8AFF2BFF4BF8CEFB2E.taxon	biology_ecology	Known hosts and distribution: Guizhou province, China (this study), Yunnan Province, Dali, WanHua stream, China (Zhu et al. 2016). Known hosts: Platanus sp. (this study), saprobic on decaying wood submerged in stream (Zhu et al. 2016).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC4FF8AFF2BFF4BF8CEFB2E.taxon	materials_examined	GenBank Numbers: LSU: MW 273148, SSU: MW 273295, ITS: MW 273144	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC4FF8AFF2BFF4BF8CEFB2E.taxon	discussion	Notes: Helminthosporium velutinum, the type species of Helminthosporium was re-visited by Voglmayr & Jaklitsch (2017) and designated the epitype and the ex-epitype. The genus was reported with the sexual morph however, Helminthosporium velutinum lacks the sexual morph (Voglmayr & Jaklitsch 2017). According to Voglmayr & Jaklitsch (2017), distribution of the species was reported as ‘ Widespread and common in temperate Eurasia and America, probably almost cosmopolitan’. Zhu et al. (2016) reported Helminthosporium velutinum from submerged wood from Yunnan Province, China. In this study, we collected Helminthosporium velutinum on dead branches of Platanus sp. from Guizhou Province, China. According to Farr & Rossman (2021), a taxon named Helminthosporium spiciferum (Nicot 1953) (current name: Curvularia spicifera Index Fungorum 2021) was reported from Platanus occidentalis. Besides this record, as far as we know, Helminthosporium species have not been reported from Platanus species. Moreover, this is the first record of this genus from terrestrial habitats from China.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCBFF8AFF2BFB67FF82F836.taxon	description	(FIGURE 5)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCBFF8AFF2BFB67FF82F836.taxon	materials_examined	Index Fungorum Number: IF 552026	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCBFF8AFF2BFB67FF82F836.taxon	description	Saprobic on decaying bamboo culms. Sexual morph: Ascostromata forming under black area, including 3 – 5 locules, up to 3 – 5 mm long and 0.5 – 2 mm wide, slightly raised at maturity, irregular, black, coriaceous. Locules in vertical section 220 – 280 μm high, 180 – 330 μm diam., gregarious, subglobose to ellipsoidal, dark brown, with ostiolate opening. Peridium composed of dark brown cells comprising host and fungal tissues. Hamathecium comprising dense, 2 – 3.5 μm wide, cellular pseudoparaphyses, indistinctly septate, embedded in a gelatinous matrix. Asci 85 – 290 × 7.5 – 17.5 μm (x = 165 × 10.5 μm, n = 30), 8 - spored, bitunicate, cylindrical, with a short furcate pedicel, with an apical ocular chamber. Ascospore s 11 – 19.5 × 4 – 6.5 μm (x = 16.5 × 5.5 μm, n = 30), uniseriate, fusiform-ellipsoidal, 1 - septate, constricted at the septum, narrow at both ends, with striate wall ornamentation, some with obvious verrucose. Asexual morph: Undetermined.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCBFF8AFF2BFB67FF82F836.taxon	materials_examined	Material examined: — CHINA, Guizhou Province, Leigong Mountain National Nature Reserve, on dead culm of bamboo, July 2019, Q. R. Li 2019 LGS 13 (GMB 0009), living cultures, GMBC 0009 (new country record).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCBFF8AFF2BFB67FF82F836.taxon	biology_ecology	Known hosts and distribution: — Guizhou, China, Thailand Known hosts: — Bamboo	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCBFF8AFF2BFB67FF82F836.taxon	materials_examined	GenBank Numbers: — ITS: MW 881445; LSU: MW 881451; RPB 2: MW 883345	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCBFF8AFF2BFB67FF82F836.taxon	discussion	Notes: — Roussoella, typified by Roussoella nitidula Sacc. & Paol. was introduced by Saccardo & Paoletti (1888). Most species of Roussoella were observed from monocotyledon, such as bamboo and palms (Dai et al. 2017; Hyde et al. 2018). Roussoella pseudohysterioides was originally introduced by Dai et al. (2017) isolated from Thailand. This is the first report of Roussoella pseudohysterioides discovered from China.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC9FF88FF2BFEA0FD9EFDC2.taxon	discussion	Tolypocladium used to be known as an asexually genus since it was described (Gams 1971) until Hodge et al. (1996) linked one sexual species to this genus. This genus was transferred in the family Ophiocordycipitaceae based on phylogenetic analyses (Sung et al. 2007). Many species of Elaphocordyceps and Chaunopycnis have been transferred to Tolypocladium, which was protected in the International Code of Nomenclature for algae, fungi, and plant (Kirk et al. 2013, Quandt et al. 2014).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC9FF89FF2BFD40F9C3FE1E.taxon	description	(FIGURE 6)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC9FF89FF2BFD40F9C3FE1E.taxon	etymology	Etymology: — The specific epithet refers to the feature of the capitate stromata.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC9FF89FF2BFD40F9C3FE1E.taxon	materials_examined	Holotype: — HKAS 55588	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC9FF89FF2BFD40F9C3FE1E.taxon	description	Parasitic in an unidentified host buried in the upper 1 cm of soil, forming brown to dark stromata. Sexual morph: Ascomata 8 – 13 cm long, 5 – 10 mm wide, stromatic, brown to olive when fresh, dark when dry, tough, capitate, mostly solitary, stipitate, inside hollow when mature. Stipe 8 – 12 × 0.5 – 0.7 cm, cylindrical, yellow to brown when fresh, dark brown when dry, with green scales on the surface when fresh, with dark furfuraceous when dry, fibrous, hollow, with stromata on the top. Fertile head 8 - 10 mm in diam, hemispherical, minutely mammilate, bracken green to dark olive when fresh, dark when dry, distinctly separated from the stipe, tough, solitary, with a cortex of closely interwoven hyaline hyphae pseudoparenchymatous in section. Perithecia 500 – 600 × 340 – 420 μm (x = 560 × 380 µm, n = 30), subglobose to ovoid, immersed in stroma with slightly protruding ostiolar papilla. Ostiole lined with paraphyses. Peridium 20 – 25 µm (x = 22 µm, n = 60) wide, of brown pigmented cells of textura porrecta to paler textura prismatica. Asci 320 – 400 × 10 – 15 um (x = 360 × 13 µm, n = 60), 8 - spored, unitunicate, narrow cylindrical, hyaline, with thick apex. Apical cap 5.5 – 7.5 × 5 – 7.5 μm (x = 6.5 × 6 µm, n = 60) μm diam, hyaline. Ascospores as long as asci, filiform, hyaline break into secondary spores. Secondary spores 25 – 35 × 3 – 4.5 μm (x = 30 × 3.8 µm, n = 60), cylindrical to fusoid with truncated ends, smooth, hyaline, with or without septa. Asexual morph: Undetermined.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC9FF89FF2BFD40F9C3FE1E.taxon	materials_examined	Material examined: — CHINA, Yunnan Province, Lijiang City, Laojun Mountain. 15 July 2008, Yun Ting Huang (HKAS 55588, holotype), (GZU A- 77, i sotype). LSU: MW 798786 MW 7987877, SSU MW 798784 MW 798785, ITS MW 798788 MW 798789 (Supplementary Table 1)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC9FF89FF2BFD40F9C3FE1E.taxon	discussion	Notes: — We identified this species after we inspected the unidentified specimens in the Herbarium of Kunming Institute of Botany, Chinese Academy of Sciences (HKAS). According to morphology and phylogenetic analysis (Fig. 7), the new species Tolypocladium cucullae is close to T. capitatum, T. delicatistipitatum, T. fumosum and T. longisegmentatum. Tolypocladium cucullae is distinct from T. capitatum by producing hollow, furfuraceous stipe, smaller perithecia and smaller asci, while T. capitatum produces tough stipe, bigger perithecia and longer asci (Mains 1957, Table 3). Tolypocladium cucullae is distinct from T. fumosum in having larger and brown to olive when fresh, dark when dry stromata; larger, hemispherical and bracken green to dark olive when fresh, dark when dry fertile head; smaller perithecia; longer and cylindrical to fusoid secondary spores. Tolypocladium fumosum has smaller, pale chalcedony yellow at the base to dark gull grey at the apex stromata; ellipsoidal when young and capitate when mature fertile head; larger perithecia; shorter and cylindrical to cubic secondary spores. The phylogenetic tree also supports that T. cucullae is distinct from T. capitatum and T. fumosum (Fig. 7).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFC9FF89FF2BFD40F9C3FE1E.taxon	diagnosis	The morpho-characters of T. cucullae are similar to T. delicatistipitatum, but the latter has no DNA sequence data. Both of them formed stipitate stromata, subglobose to ovoid perithecia, cylindrical asci and cylindrical secondary spores with truncate ends. Tolypocladium cucullae is different from Tolypocladium delicatistipitatum in producing stromata with a hemispherical, dark (when dry) fertile part, with a thinner (5.5 – 6 μm in diam) apical cap and longer (25 – 35 μm long) secondary spores, while T. delicatistipitatum produces stromata with a spherical or oval fertile part, a thicker (8 μm in diam) apical cap and shorter (18 – 28 μm long) secondary ascospores. Molecular data have been supplemented by four strains, including OSC 110992 (Sung et al. 2007), HMJAU 6903 (Yan & Bau 2014), MHHNU 8699 (Chen & Zhang 2019) and 2731. S (Stensrud et al. 2005). Furthermore, HMJAU 6903 (Yan & Bau 2014) and MHHNU 8699 (Chen & Zhang 2019) were reported molecular data with descriptions and illustrations among these four strains. Tolypocladium cucullae is distinct from T. longisegmentatum (DAOM 137162, Ginns 1988; HMJAU 6903, Yan & Bau 2014; MHHNU 8699, Chen & Zhang 2019) in having a hemispherical fertile head, brown perithecia and shorter secondary spores (Table 3). Molecular data indicated that the new species has 31 bp in ITS that differ from HMJAU 6903, 36 bp in ITS that is different from MHHNU 8699, 38 bp in ITS is different from 2731. S, 26 bp in LSU that are different from OSC 110992. In conclusion, we propose T. cucullae as a new species.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCEFF8CFF2BFA9AFF56FF77.taxon	description	(FIGURE. 8)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCEFF8CFF2BFA9AFF56FF77.taxon	materials_examined	Index Fungorum Number: 130206	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCEFF8CFF2BFA9AFF56FF77.taxon	description	Specimen found on stick insects (Phasmatodea). Host’s internodes between abdominal segments were covered with white to pale green mycelium and sporulating conidiophores. Conidiophores arising from hyphae, smooth-walled. Phialides cylindrical, solitary, smooth-walled, 8 – 18 × 1 – 1.5 μm. Conidia smooth-walled, pale green to colorless (6.5 – 9.5 × 2.5 – 3 μm), cylindrical, slightly constricted in the middle, round at both ends or tapered at one end. Bi-celled conidium was not observed. Culture characteristics: — Colonies on PDA were relatively slow-growing, fluffy, beginning to white, and the spores appear green, started to produce conidia after 3 days in culture at 25 ° C in the laboratory, 17 mm diam. after 10 days. Mature conidia chains are often spread on the surface of the colony in small granular clumps. Hyphae hyaline, separated, branched, about 3 um wide.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCEFF8CFF2BFA9AFF56FF77.taxon	materials_examined	Material examined: — China, Guizhou Province, Guiyang, on dead stick insects, July 2019, Q. R. L, 2019 GY 03 (GMB 0010), living cultures, GMBC 0010 (new host record).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCEFF8CFF2BFA9AFF56FF77.taxon	biology_ecology	Known hosts and distribution: — Guizhou Known hosts: — larvae of Noctuidae sp., stick insects	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCEFF8CFF2BFA9AFF56FF77.taxon	materials_examined	GenBank Numbers: — ITS: MW 881444, LSU: MW 881450, RPB 2: MW 883344	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCEFF8CFF2BFA9AFF56FF77.taxon	discussion	Note: — Metarhizium guizhouense, isolated on Hepialus sp. in Guizhou China, was introduced by Guo et al. (1986). In 1991, Liang et al. reported a M. taii Z. Q. Liang & A. Y. Liu on larvae of Noctuidae sp. (Lepidoptera). Metacordyceps taii was recognized to be the sexual morph of M. guizhouense by Bischoff et al. (2009). Qu et al. also reported that M. taii should be treated as a synonym of M. guizhouense based on molecular data. This is the first report of M. guizhouense isolated on stick insects (Phasmatodea).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCDFF92FF2BF8C6FFD8FD52.taxon	description	(FIGURE. 9)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCDFF92FF2BF8C6FFD8FD52.taxon	materials_examined	Index Fungorum Number: IF 504560	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCDFF92FF2BF8C6FFD8FD52.taxon	description	Saprobic on submerged decaying wood. Sexual morph undetermined. Asexual morph Colonies on natural substrata effuse, superficial, scattered, hairy, solitary or in small groups, black, with a mass of visible whitish to grayish conidia on middle to upper part of conidiophores. Mycelium partly superficial, partly immersed. Conidiophores macronematous, mononematous, straight to slightly curve, unbranched, medium brown to brown at base part, pale towards top part, thin-walled, septate, 172 – 304 × 2 – 3 μm (= 212 × 2.6 μm, n = 15). Conidiogenous cells holoblastic, polyblastic, integrated, terminal and intercalary, cylindrical, subhyaline to pale brown, forming a rachis with scattered pimpleshaped denticles which are less than 1 µm long and approx. 0.5 µm in diameter. Conidia solitary, fusoid or ellipsoidal to obovoidal, rounded at the apex, obtuse and tapering towards base, hyaline, aseptate, thin-walled, smooth, without guttule, some with a small protuberance, 5 – 6.5 × 2.3 – 3.6 μm (= 5.8 × 2.9 μm, n = 35). Culture characteristics: — Conidia germinating on PDA within 24 h. Colonies grow on PDA attaining 38 – 48 mm diameter in 40 d at 20 – 25 ° C in the condition of 12 h-dark and 12 h-light, with smooth, floccose, pale brown mycelium on the surface, reverse white, with filamentous, undulate margin.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCDFF92FF2BF8C6FFD8FD52.taxon	materials_examined	Material examined: China, Yunnan Province, small river of Puzhehei, on dead submerged decaying wood of unidentified plants, 23 June 2018, Hao Yang, P 37 (IFRD 500 – 012), living culture = KUMCC 20 – 0190 (new record from Yunnan, new habitat record).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCDFF92FF2BF8C6FFD8FD52.taxon	biology_ecology	Known hosts and distribution: Soil (Germany, Papua New Guinea, Zaire), Homo sapiens (Netherlands), Wheat straw (South Africa), Triticum aestivum (Netherlands), Malus sylvestris (Switzerland), Cannomois virgate (South Africa)	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCDFF92FF2BF8C6FFD8FD52.taxon	materials_examined	GenBank Numbers: ITS MT 559103	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFCDFF92FF2BF8C6FFD8FD52.taxon	discussion	Notes: — Myrmecridium was introduced by Arzanlou et al. (2007) with M. schulzeri as type species, which was described as Chloridium schulzerii (Sacc.) Sacc. and Rhinocladiella schulzeri (Sacc.) Matsush. Our isolate fits the characters of Myrmecridium well in having macronematous, unbranched, septate conidiophores, polyblastic conidiogenous cells with denticles, and hyaline, thin-walled, smooth, fusoid or ellipsoidal to obovoidal conidia (Arzanlou et al. 2007, Jie et al. 2013, Peintner et al. 2016, Réblová et al. 2016). The sequence data in ITS gene region of our isolate are identical to that of M. schulzeri. Thus, we identified our isolate as M. schulzeri. Our isolate is a new geographic record in China and a new habitat record from freshwater.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFD3FF92FF2BFCBAFCF9F942.taxon	description	(FIGURES 10, 11) Pileus (4.9 B) 4 – 16 cm diameter, thin, deeply infundibuliform; surface brown to dark chestnut brown, finely velutinate at the centre, radially plicate-sulcate with the striae extending almost to the centre, margin curved downwards, ciliate. Lamellae decurrent, ochraceous buff, darkening at maturity, 1.5 – 3 mm broad, moderately spaced with lamellulae of five lengths; entire edge. Stipe central, 4 – 17 cm × 1.5 – 2 mm, solid, cylindric, slightly expanded at the base; surface concolorous with the pileus, uniformly velutinate and felt-like. Context 1 – 2 mm thick at the centre, coriaceous, white. Generative hyphae (4.7 E) 2 – 4 μm diameter, very thin-walled, frequently branching with clamp connections. Skeletal hyphae (4.7 E) 2 – 5 μm diameter, cylindric, sinuous with a thickened hyaline wall, unbranched. Basidiospores (4.7 A) (5.5 – 6.5 × 2.5 – 3.5 (5.5 ± 0.3 × 3 ± 0.2) μm, Q = 1.83, hyaline, ellipsoid to oblong cylindric, thin-walled, with few contents. Basidia 17 – 29 × 4 – 5 μm, clavate, cylindric, bearing 4 sterigmata. Lamella-edge sterile, with small Cheilocystidia, soon collapsing. Cheilocystidia crowded, 17 – 26 × 3 – 6 μm, nodulose-clavate, hyaline, irregular, thinwalled. Sclerocystidia (4.7 D) very abundant, very crowded, 19 – 41 × 4 – 9 μm, irregularly fusoid, elongate, with a thick, hyaline wall. Hymenophoral trama irregular of radiate construction, hyaline. Subhymenial layer slightly developed. Pileipellis on epicutis, up to 115 μm thick, of more or less repent hyaline, up to 160 μm long, 115 μm diameter, with a thickened wall of 1.5 – 3.5 μm. Stipitipellis similar to Pileipellis. Smell mushroomy, edible when it is young.	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFD3FF92FF2BFCBAFCF9F942.taxon	materials_examined	Material examined: — CHINA, Yunnan Province, Xishuangbanna, elevation 400 m, rainforest dominated by Castanopsis sp. and Dipterocarpus sp.; 4 June 2018, Samantha C. Karunarathna (HKAS 121668) (new country record).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
286487CCFFD3FF92FF2BFCBAFCF9F942.taxon	discussion	Notes: Panus similis has a palaeotropical Distribution and is most commonly found in south-east Asia and Australasia, but also extends westwards across equatorial Africa. It is recognized by the excellently velutinate to glabrescent pileus with noticeable radially sulcate striate, combined with the subdistant lamellae. Large basidiocarps are frequently encountered almost always associated with a prominent pseudosclerotium. This study reports P. similis for the first time from China, based on both morphological characteristics (Figs. 10, 11) and phylogenetic analysis (Fig. 12).	en	Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia, Kang, Yingqian (2021): Yunnan-Guizhou Plateau: a mycological hotspot. Phytotaxa 523 (1): 1-31, DOI: 10.11646/phytotaxa.523.1.1
