Delitschia
Delitschia Auersw., Hedwigia 5: 49 (1866).
Index Fungorum number: IF 1443; Facesoffungi number: FoF 08203, 68 morphological species (Species Fungorum 2022), 5 species with molecular data.
Habitat terrestrial. Saprobic on old herbivore dung. Sexual morph: Ascomata solitary or scattered, immersed to semi-immersed, subglobose to subpyriform, brown or black, membranous, relatively large, often covered with dense, hyphoid hairs, neck blackish, central, usually coriaceous, with a wide opening and a smooth or tuberculate to hairy surface. Peridium thick at the apex, thinner at the base, well differentiated with an outer layer of thick-walled, dark pigmented cells, and an inner layer of larger, thin-walled, lightly pigmented cells. Hamathecium of dense, very long, anastomosing and branching, filiform pseudoparaphyses. Asci 8-spored, cylindrical to cylindro-clavate, short, narrow pedicellate, which are rounded at the base, apex with a wide ocular chamber. Ascospores obliquely uni-seriate and partially overlapping, ellipsoid, reddish brown, uniseptate, slightly constricted at the septum, smooth-walled, cells often easily separable from each other, each cell with a full-length germ slit. Asexual morph: Unknown (adapted from Hyde et al. 2013).
Type species: Delitschia didyma Auersw.
Notes: Delitschia is characterised by subglobose to subpyriform, brown or black ascomata, cylindrical to cylindro-clavate, short, narrow pedicellate asci and ellipsoid, reddish brown, uniseptate ascospores. Luck-Allen and Cain (1975) reviewed Delitschia and accepted 46 species. Several authors have added new species to Delitschia (Romero & Samuels 1991, Hyde & Steinke 1996). Delitschia is morphologically and phylogenetically a distinct genus in Delitschiaceae but requires revision as several species lack molecular data. Molecular data available for Delitschia are ITS, LSU, SSU, BTUB, RPB2, TEF-1 and mtSSU.
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