Flammeascoma
Flammeascoma Phook. & K.D. Hyde, in Liu et al., Fungal Diversity: 10.1007/s13225-015-0324-y, [63] (2015).
Index Fungorum number: IF 550925; Facesoffungi number: FoF 06702, 2 morphological species (Species Fungorum 2022), 2 species with molecular data.
Saprobic on submerged bamboo. Sexual morph: Ascostromata solitary or gregarious, semi-immersed to superficial, dark at the basal region and orange brown at the apex of the ascoma, uni- to bi-loculate, conical to lenticular, with a flattened base, coriaceous, ostiole central, with pore-like opening. Peridium thick-walled, of unequal thickness, poorly developed at the base, composed of several layers of brown to dark brown cells, with host cells plus fungal tissue, organised in a textura epidermoidea. Hamathecium comprising dense, narrow, cellular pseudoparaphyses, embedded in a hyaline gelatinous matrix. Asci 8-spored, bitunicate, fissitunicate, clavate to cylindric-clavate, short pedicellate with foot-like pedicel, apically rounded with well-developed ocular chamber. Ascospores overlapping 1– 2-seriate, didymosporous, fusiform, slightly curved, hyaline, becoming brown when released from asci and geminating, uniseptate, constricted at the septum, surrounded by mucilaginous sheath. Asexual morph: Unknown (adapted from Liu et al. 2015).
Type species: Flammeascoma bambusae Phookamsak & K.D. Hyde
Notes: Flammeascoma is unique in having orange-brown pigments in the ascostromata. Flammeascoma resembles Fissuroma in having coriaceous ascomata, trabeculate pseudoparaphyses and fusiform ascospores. Flammeascoma differs from Fissuroma in having a pore-like, orangish, pigmented ostiole, whereas Fissuroma has a dark, slit-like opening (Tanaka & Harada 2005, Liu et al. 2015). In previous phylogenetic analyses, Flammeascoma forms a single clade basal to Anteagloniaceae (Mugambi & Huhndorf 2009, Hyde et al. 2013). Flammeascoma differs from Anteaglonium in having pseudothecial ascomata with larger ascospores while Anteaglonium has hysterothecial ascomata and small ascospores (Mugambi & Huhndorf 2009, Hyde et al. 2013). Flammeascoma is morphologically and phylogenetically a distinct genus in Anteagloniaceae. Molecular markers available for Flammeascoma are ITS, LSU, SSU, RPB2 and TEF-1.
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