Pseudobyssosphaeria
Pseudobyssosphaeria H.B. Jiang & K.D. Hyde, in Hyde et al., Mycosphere 9(2): 303 (2018).
Index Fungorum number: IF 554471; Facesoffungi number: FoF 08300, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on dead bamboo culms. Sexual morph: Ascomata superficial, solitary, scattered or gregarious, sub globose, blackened, with a central ostiole, ascomata covered with outwardly brown, septate, branched hyphae. Setae covering the whole ascoma, dark brown, unbranched, septate. Peridium multi-layered, outer layer composed of thick-walled, dark brown cells of textura angularis; inner layer composed of thin-walled, hyaline cells of textura angularis. Hamathecium comprising septate, branched, anastomosing pseudoparaphyses embedded in a gelatinous matrix. Asci 8-spored, bitunicate, cylindrical to clavate, short pedicellate with furcate ends, apically rounded. Ascospores overlapping bi-seriate, fusiform, uniseptate, constricted at the septum, hyaline. Asexual morph: Unknown (adapted from Hyde et al. 2018).
Type species: Pseudobyssosphaeria bambusae H.B. Jiang & K.D. Hyde
Notes: Pseudobyssosphaeria is characterised by superficial, subglobose, blackened, ostiolate ascomata, dark brown setae surrounding the ascoma, multi-layered peridium comprising of textura angularis, cylindrical to clavate asci, and fusiform, uniseptate ascospores. Hyde et al. (2018) reported some problems with DNA sequence data of Pseudobyssosphaeria. Pem et al. (2019c) did not include Pseudobyssosphaeria in their phylogenetic analysis. Currently, Pseudobyssosphaeria is a distinct genus in Melanommataceae. Molecular markers available for Pseudobyssosphaeria are
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