Muriphaeosphaeria C. Phukhamsakda, T. Bulgakov & K.D. Hyde, 2015

Phukhamsakda, Chayanard, Ariyawansa, Hiran A., Phookamsak, Rungtiwa, Chomnunti, Putarak, Bulgakov, Timur S., Yang, Jun-Bo, Bhat, Darbhe J., Bahkali, Ali H. & Hyde, Kevin D., 2015, Muriphaeosphaeria galatellae gen. et sp. nov. in Phaeosphaeriaceae (Pleosporales), Phytotaxa 227 (1), pp. 55-65 : 60

Muriphaeosphaeria C. Phukhamsakda, T. Bulgakov & K.D. Hyde , gen. nov.

Index Fungorum Number IF551291; Facesoffungi number FoF 00868

Etymology: —The generic epithet is in reference to the muriform ascospores.

Saprobic on dead and dying stems. Sexual morph: Ascomata coriaceous, superficial, solitary, scattered, globose to cupulate, black to dark brown, smooth-walled, ostiolate. Ostiole central, lacking periphyses. Peridium multi-layered, dark to light brown, comprising cells of textura angularis, with inner hyaline layer. Hamathecium comprising long, filamentous, narrow, septate pseudoparaphyses surrounding asci. Asci 8-spored, bitunicate, fissitunicate, cylindrical to clavate, short-pedicellate, apically rounded with an ocular chamber clearly visible when immature. Ascospores bi-seriate, partially overlapping, obovoid to sub-fusiform, narrow towards ends, slightly curved, transversely septate, with a longitudinal septuma in the central cells, slightly constricted at the central septum, light brown to yellowish, granulate, smooth-walled. Asexual morph: Coelomycetous. Conidiomata superficial, dark brown to black, globose, uniloculate, solitary, scattered, ostiolate. Pycnidial wall thick-walled, multi-layered, with inner layer comprising several cell-layers, comprising brown-walled cells of textura angularis. Conidiophores reduced to conidiogenous cells. Conidiogenous cells holoblastic with percurrent annelidic proliferations, integrated, oblong, hyaline, brown when mature, smooth-walled, and formed from the inner layer of pycnidial wall. Conidia oblong to cylindrical, narrowly rounded at both ends, transversely septate, pale brown when mature.