Mucispora hydei Wijayaw., Q.R. Li, Y.C. Deng, L.S. Dissan & D-Q Dai

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), pp. 1-31 : 4-5

publication ID 10.11646/phytotaxa.523.1.1


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Mucispora hydei Wijayaw., Q.R. Li, Y.C. Deng, L.S. Dissan & D-Q Dai

sp. nov.

Mucispora hydei Wijayaw., Q.R. Li, Y.C. Deng, L.S. Dissan & D-Q Dai View in CoL sp. nov.


Index Fungorum number: IF558463

Etymology:— Named in honour of British mycologist, K.D. Hyde for his immense contributions to mycology

Holotype:— GMB0028

Saprobic on decaying wood. Asexual morph Hyphomycetous. Conidiophores 60–110 × 8–12 µm (x̅ = 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 (x̅ = 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.

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, ( GMB0028 , holotype, NNW56 , isotype) GoogleMaps .

LSU: MW797122 View Materials , SSU MW 800164 View Materials , ITS MW 797039 View Materials (Supplementary Table 1)

Known distribution:— Guizhou Province, China

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 (ITS4/ ITS5), LSU (primers: LR5/ LROR) and SSU (primers: NS1/NS4) were successful.

Phylogenetic analyses of combined LSU and ITS genes ( Fig. 2 View FIGURE ) 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 View TABLE ). Hence, we introduce the fourth species of the genus, Mucispora hydei . This is the first record of the genus outside Thailand.


Departamento de Geologia, Universidad de Chile


Louisiana State University - Herbarium


Saratov State University


Museum Wasmann

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