Fissuroma
Fissuroma Jian K. Liu, Phook., E.B.G. Jones & K.D. Hyde, in Liu et al., Fungal Diversity 51(1): 145 (2011).
Index Fungorum number: IF 563456; Facesoffungi number: FoF 08139, 14 morphological species (Species Fungorum 2022), 14 species with molecular data.
Saprobic on host. Sexual morph: Ascomata black, scattered, rarely clustered, immersed to superficial, erumpent, opening with a slit-like ostiole. Peridium carbonaceous, uneven in thickness, composed of dark brown thick-walled cells. Pseudoparaphyses trabeculate, hyaline, anastomosing, embedded in a gelatinous matrix. Asci 8–spored, fissitunicate, obclavate to cylindrical, pedicellate, with a small ocular chamber. Ascospores fusiform, hyaline, smooth-walled, 1–septate, slightly constricted at the septum, surrounded by a mucilaginous sheath. Asexual morph: Unknown (adapted from Liu et al. 2011).
Type species: Fissuroma maculans (Rehm) Jian K. Liu, E.B.G. Jones & K.D. Hyde
Notes: Fissuroma is characterised by erumpent ascomata with slit-like ostiole, trabeculate pseudoparaphyses, obclavate to cylindrical asci, fusiform, hyaline ascospores. Fissuroma has been reported to have coelomycetous, pleurophomopsis-like asexual morphs (Tanaka & Harada 2005, Liu et al. 2011, Phookamsak et al. 2015) and is accommodated in Aigialaceae (Suetrong et al. 2009). Phookamsak et al. (2015) expanded the genus with the introduction of four new species. Fissuroma constitutes a strongly supported monophyletic clade basal to Neoastrosphaeriella and is a morphologically and phylogenetically well-resolved genus in Aigialaceae.
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