Bambusistroma
Bambusistroma D.Q. Dai & K.D. Hyde, in Adamčík et al. Cryptogamie Mycologie 36 (2): 123 (2015).
Index Fungorum number: IF 551027; Facesoffungi number: FoF 00582, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on decaying bamboo culms. Sexual morph: Ascomata stromatic, uniloculate, solitary to clustered, immersed under host issue, becoming erumpent when mature, subglobose to slightly conical, with centrally located ostiole lined with periphyses. Peridium comprising host and fungal tissues, composed of brown and thick-walled cells of textura angularis, with the basal part composed of thinner, hyaline, smaller cells. Hamathecium of dense, long, anastomosing and branching pseudoparaphyses above the asci. Asci 8-spored, bitunicate, cylindrical, with a short furcate pedicel, with a shallow apical chamber. Ascospores 2–3-seriate, slightly broad fusiform, uniseptate, hyaline, guttulate, straight to curved, smooth-walled, constricted at septum, surrounded by a mucilaginous sheath. Asexual morph: Unknown (adapted from Adamčík et al. 2015).
Type species: Bambusistroma didymosporum D.Q. Dai & K.D. Hyde
Notes: Bambusistroma was introduced without registration number as required by the ICN. Dai and Hyde in Adamčík et al. (2015) re-collected B. didymosporum (MFLU 15-0057) and re-introduced Bambusistroma. Bambusistroma is characterised by stromatic, uniloculate ascomata, 8-spored, bitunicate, cylindrical asci, with a short furcate pedicel and 2–3-seriate, slightly broad fusiform, uniseptate, hyaline, guttulate ascospores. The asexual morph is not reported. Adamčík et al. (2015) treated Bambusistroma in Massarinaceae while other authors considered it in Periconiaceae based on evidence from phylogenetic analyses (Tanaka et al. 2015, Phukhamsakda et al. 2016, 2017, Thambugala et al. 2017b). Yang et al. (2022) synonymized Bambusistroma under Periconia based on morphological and phylogenetic evidence and provided an updated description of P. didymosporum. Molecular markers available for Bambusistroma include ITS, SSU, LSU, TEF-1 and RPB2.
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