Chaetocapnodium
Chaetocapnodium Hongsanan & K.D. Hyde, in Liu et al., Fungal Diversity 72: 68 (2015).
Index Fungorum number: IF 550888; Facesoffungi number: FoF 00399, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on the surface of leaves. Superficial hyphae with septa, constricted and dark at the septa. Sexual morph: Ascomata superficial, solitary, subglobose, dark brown to black, with setae. Setae short, aseptate, brown. Peridium comprising two layers of cells of textura angularis, inner layer hyaline, outer layer brown, thickened at the base. Hamathecium lacking psuedoparaphyses. Asci 8-spored, bitunicate, fissitunicate, cylindrical to clavate, short pedicellate or apedicellate. Ascospores bi to tri-seriate, oblong to ellipsoid, 3-septate, constricted and dark at the septa, hyaline when immature, brown at maturity, smooth-walled. Asexual morph: Unknown (adapted from Liu et al. 2015).
Type species: Chaetocapnodium siamense Hongsanan & K.D. Hyde
Notes: Chaetocapnodium is characterised by a subglobose to globose, ascomata forming from thalli, with a central ostiole, and bitunicate asci and has a saprobic habitat. Chaetocapnodium resembles Capnodium in ascospore shape and septation but differs in having short setae at upper part of ascomata and cylindrical to clavate asci. Chaetocapnodium is a distinct and well-supported genus in Capnodiaceae. Molecular markers available for Chaetocapnodium are LSU, ITS, RPB2 and TEF-1.
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