Morosphaeriaceae Suetrong, Sakayaroj, E.B.G. Jones & C.L. Schoch

Index Fungorum number: IF 515953; Facesoffungi number: FoF 08304, 32 species


Saprobic on lignocellulosic materials in marine, and freshwater habitats, or root endophyte of white poplar. Sexual morph: Ascomata solitary or gregarious, subglobose to lenticular, immersed becoming superficial, ostiolate, papillate, coriaceous, brown to black. Hamathecium numerous, filamenatous, branched, anastomosing, usually cellular pseudoparaphyses. Asci 8-spored, clavate to cylindrical, short pedunculate, thick-walled, bitunicate, fissitunicate, with an ocular chamber and apical apparatus, persistent. Ascospores 2-seriate, fusiform to ellipsoidal, hyaline to brown, 1–3-septate, mostly constricted at the septa, surrounded by a mucilaginous sheath. Asexual morph: Undetermined .


Type: Morosphaeria Suetrong, Sakayaroj, E.B.G. Jones & C.L. Schoch.


Notes: Suetrong et al. (2009) introduced Morosphaeriaceae in Pleosporales for two Massarina species M. ramunculicola and M. velatispora, which did not group in Massarinaceae. Presently, Aquilomyces, Clypeoloculus, Morosphaeria and Helicascus are accepted in this family, with some species collected from freshwater habitats (Suetrong et al. 2009, Hyde et al. 2013, Wijayawardene et al. 2014, Zhang et al. 2013, 2014, 2015, Tanaka et al. 2015, Luo et al. 2016, Zeng et al. 2018, Jones et al. 2019).

Key to freshwater genera of Morosphaeriaceae

1 Asci with uncoiled endoascus and hyaline ascospores............ Aquihelicascus

1 Asci with coiled endoascus and brown ascospores.................. Neohelicascus



Hyde KD, Jones EBG, Liu JK, Ariyawansa H, Boehm E, Boonmee S, Braun U, Chomnunti P, Crous PW, Dai DQ, Diederich P, Dissanayake A, Doilom M, Doveri F, Hongsanan S, Jayawardena R, Lawrey JD, Li YM, Liu YX, Lücking R, Monkai J, Muggia L, Nelsen MP, Pang KL, Phookamsak R, Senanayake IC, Shearer CA, Suetrong S, Tanaka K, Thambugala KM, Wijayawardene NN, Wikee S, Wu HX, Zhang Y, Aguirre-Hudson B, Alias SA, Aptroot A, Bahkali AH, Bezerra JL, Bhat DJ, Camporesi E, Chukeatirote E, Gueidan C, Hawksworth DL, Hirayama K, De Hoog S, Kang JC, Knudsen K, Li WJ, Li XH, Liu ZY, Mapook A, McKenzie EHC, Miller AN, Mortimer PE, Phillips AJL, Raja HA, Scheuer C, Schumm F, Taylor JE, Tian Q, Tibpromma S, Wanasinghe DN, Wang Y, Xu JC, Yacharoen S, Yan JY, Zhang M (2013) Families of Dothideomycetes. Fungal Divers 63:1–313.

Jones EBG, Devadatha B, Abdel-Wahab MA, Dayarathne MC, Zhang SN, Hyde KD, Liu JK, Bahkali AH, Sarma V V., Tibell S, Tibell L, Wang MM, Liu F, Cai L (2020) Phylogeny of new marine Dothideomycetes and Sordariomycetes from mangroves and deep-sea sediments. Bot Mar 63:155–181.

Luo ZL, Yang J, Liu JK, Su HY, Bahkali AH, Hyde KD (2016) Two new species of Helicascus (Morosphaeriaceae) from submerged wood in northern Thailand. Phytotaxa 270:182–190.

Suetrong S, Schoch CL, Spatafora JW, Kohlmeyer J, Volkmann-Kohlmeyer B, Sakayaroj J, Phongpaichit S, Tanaka K, Hirayama K, Jones EBG (2009) Molecular systematics of the marine Dothideomycetes. Stud Mycol 64:155–173S6.

Tanaka K, Hirayama K, Yonezawa H, Sato G, Toriyabe A, Kudo H, Hashimoto A, Matsumura M, Harada Y, Kurihara Y, Shirouzu T, Hosoya T (2015) Revision of the Massarineae (Pleosporales, Dothideomycetes). Stud Mycol 82:75–136.

Wijayawardene NN, Crous PW, Kirk PM, Hawksworth DL, Boonmee S, Braun U, Dai D-Q, D’souza MJ, Diederich P, Dissanayake A, Doilom M, Hongsanan S, Jones EBG, Groenewald JZ, Jayawardena R, Lawrey JD, Liu J-K, Lücking R, Madrid H, Manamgoda DS, Muggia L, Nelsen MP, Phookamsak R, Suetrong S, Tanaka K, Thambugala KM, Wanasinghe DN, Wikee S, Zhang Y, Aptroot A, Ariyawansa HA, Bahkali AH, Bhat DJ, Gueidan C, Chomnunti P, De Hoog GS, Knudsen K, Li W-J, McKenzie EHC, Miller AN, Phillips AJL, PiÄ…tek M, Raja HA, Shivas RS, Slippers B, Taylor JE, Tian Q, Wang Y, Woudenberg JHC, Cai L, Jaklitsch WM, Hyde KD (2014) Naming and outline of Dothideomycetes–2014 including proposals for the protection or suppression of generic names. Fungal Divers 69:1–55.

Zeng M, Huang SK, Hyde KD, Zhao Q (2018) Helicascus alatus (Morosphaeriaceae), a new freshwater species from southwestern China. Phytotaxa 351:210–218.

Zhang H, Hyde KD, Abdel-Wahab MA, Abdel-Aziz EA, Ariyawansa HA, Ko Ko TW, Zhao RL, Alias SA, Bahkali AH, Zhou D (2013) A modern concept for Helicascus with a Pleurophomopsis-like asexual state. Sydowia 65:147–166.

Zhang J, Zhou Y, Dou Z, Fournier J, Zhang Y (2015) Helicascus unilocularis sp. nov., a new freshwater pleosporalean ascomycete from the Caribbean area. Mycol Prog 14:1–8.

Zhang Y, Liu Y, Zhou Y, Zhang X, Cui B, He S, Fournier J (2014) Helicascus gallicus sp. nov., a new freshwater pleosporalean ascomycete from France. Phytotaxa 183:183–192.


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