Morenoina
Morenoina Theiss., Annls mycol. 11(5): 434 (1913).
Index Fungorum number: IF 3270; Facesoffungi number: FoF 07612, 26 morphological species (Species Fungorum 2022), 2 species with molecular data.
Saprobic on stem or leaves, forming blackened areas. Sexual morph: Thyriothecia solitary, aggregated, or gregarious, superficial, easily removed from the host surface, black, ellipsoid, oblong, curved, opening by X- or Y-shaped or linear fissures, branched at the margin, from the center to the outer rim, lacking free hyphae and appressoria at the margin. Upper wall comprising linear, dark cells, which are branched at the margin, radiating from the center to the outer rim. Hamathecium pseudoparaphyses not observed. Asci 8-spored, bitunicate, fissitunicate dehiscence not observed, subglobose to oblong or saccate to globose, apedicellate, ocular chamber not observed, or with a distinct, thickened apical region. Ascospores overlapping 2–3-seriate, oblong to obvoid, or fusiform, hyaline, uniseptate, constricted at the septum, with or without guttules, smooth-walled. Asexual morph: Coelomycetous. “Sirothyriella”, pycnothyria circular, radially scutellate. Conidiogenous cells holoblastic, simple, hyaline. Conidia cylindrical, hyaline, 1-celled (adapted from Hongsanan et al. 2014).
Type species: Morenoina antarctica (Speg.) Theiss.
Notes: Morenoina resembles Aulographum but differs in the morphology of the scutellum which comprises inordinately arranged cells and a hypostroma of subcuticular hyphae below the thyriothecium, a feature which is absent in Morenoina (Ellis 1980). Morenoina is a distinct and type genus of Morenoinaceae. Molecular markers available for Morenoina are ITS, LSU, SSU and TEF-1.
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