Neobyssosphaeria
Neobyssosphaeria Wanas., E.B.G. Jones & K.D. Hyde, in Phukhamsakda et al., Fungal Diversity: 10.1007/s13225-020-00448-4, [57] (2020).
Index Fungorum number: IF 557189; Facesoffungi number: FoF 07281, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on decaying wood or herbaceous plants in terrestrial habitats. Sexual morph: Ascomata immersed, ostioles orange, solitary or gregarious, globose to depressed globose, coriaceous, ostiolate. Ostioles central, papillate, opening by a pore, filled with periphyses with orange pigment around the pore. Peridium thick, multilayered, outer layer composed of reddish-brown cells of textura angularis, inner layer composed of thin and hyaline cells of textura angularis. Hamathecium composed of numerous, dense, filiform, branched, anastomosing, transversely septate, trabeculate pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, cylindrical-clavate, pedicellate with an occular chamber. Ascospores biseriate, broadly fusiform, hyaline, constricted at the septa, guttulate in each cell, with or without a mucilaginous sheath. Asexual morph: Unknown (adapted from Phukhamsakda et al. 2020).
Type species: Neobyssosphaeria clematidis Wanas., E.B.G. Jones & K.D. Hyde
Notes: Neobyssosphaeria resembles Byssosphaeria in its orange apex. Neobyssosphaeria is unique in having immersed ascomata with central papilla filled with periphyses, cellular pseudoparaphyses and broad fusiform, hyaline ascospores. Neobyssosphaeria is a well-supported and distinct genus in Melanommataceae. Molecular markers available for Neobyssosphaeria include LSU and SSU.
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