Phaeotrichum
Phaeotrichum Cain & M.E. Barr, Can. J. Bot. 34: 676 (1956).
Index Fungorum number: IF 3967; Facesoffungi number: FoF 08132, 5 morphological species (Species Fungorum 2022), 4 species with molecular data.
Habitat terrestrial, saprobic (coprophilous). Sexual morph: Ascomata small, cleistothecial, solitary, or in small groups, superficial, with long straight or slightly flexed, thin, black appendages evenly scattered on the surface of the ascomata, globose, black. Peridium thin, carbonaceous membraneous, 1-layered, composed of dark brown thick-walled cells of textura angularis. Hamathecium not observed. Asci bitunicate form not clear, fissitunicate dehiscence not observed, broadly clavate, with a relatively thick pedicel. Ascospores oblong to ellipsoid, hyaline when young, turning reddish brown at maturity,uniseptate, deeply constricted at the septum, each end with a subhyaline and broadly rounded germ pore, readily forming partspores at the septum at maturity. Asexual morph: Unknown (adapted from Zhang et al. 2012).
Type species: Phaeotrichum hystricinum Cain & M.E. Barr
Notes: Cain and Barr (1956) introduced the new family Phaeotrichaceae to accommodate Phaeotrichum. Phaeotrichum is characterised by a coprophilous habitat, cleistothecial, solitary ascomata, broadly clavate asci and oblong to ellipsoid, hyaline,uniseptate ascospores. Zhang et al. (2012) re-examined the holotype material from TRTC and assigned Phaeotrichum to Pleosporales. Phaeotrichum is morphologically and phylogenetically a distinct genus in Phaeotrichaceae. Molecular markers available for Phaeotrichum are ITS, LSU, SSU, RPB2 and TEF-1.
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