Neooccultibambusa
Neooccultibambusa Doilom & K.D. Hyde, in Doilom et al., Fungal Diversity 82: 126 (2016) [2017].
Index Fungorum number: IF 551981; Facesoffungi number: FoF 01852, 4 morphological species (Species Fungorum 2022), 4 species with molecular data.
Saprobic on dead twigs. Sexual morph: Ascomata black, solitary to gregarious, scattered, immersed to semi-immersed through bark fissures, when cut horizontally locules visible with white contents, uniloculate, globose to sub-globose, with a central ostiole. Ostiole circular, central, periphyses. Peridium composed of textura angularis cells comprising two layers, outer layer comprising black, thick-walled cells, inner layer comprising hyaline, thin-walled cells. Hamathecium hyphae-like, filiform, septate, numerous, cellular pseudoparaphyses. Asci 8-spored, bitunicate, cylindrical to subcylindrical with short furcate to rounded pedicel, sometimes long pedicel, apically rounded with an ocular chamber. Ascospores overlapping biseriate, hyaline when young, uniseptate, surrounded by a gelatinous sheath, when mature, pale brown, fusoid, with narrowly rounded ends, constricted at the center septa, slightly constricted at all septa, with 1–3 transverse septa, swollen at the center, smooth, with small and large guttules, surrounded by mucilaginous sheath. Asexual morph: Chlamydospores in culture (adapted from Doilom et al. 2016).
Type species: Neooccultibambusa chiangraiensis Doilom & K.D. Hyde
Notes: Neooccultibambusa resembles Occultibambusa in having dark brown, fusiform ascospores surrounded by a gelatinous sheath but it produces cylindrical to subcylindrical asci, with 1–3 transverse septate ascospores while Occultibambusa has cylindrical to clavate asci with 1-septate ascospores. Molecular markers available for Neooccultibambusa include ITS, LSU and SSU.
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