Anastomitrabeculiaceae Bhunjun, Phukhams and K.D. Hyde, in Bhunjun, Phukhamsakda, Jeewon, Promputtha & Hyde, Journal of Fungi 7(2, no. 94): 12 (2021)
MycoBank number: MB 556817; Index Fungorum number: IF 556817; Facesoffungi number: FoF 09521;
Etymology: Referring to the name of the type genus.
Saprobic on dead bamboo culms submerged in freshwater. Sexual morph: Ascomata immersed under a clypeus to semi-immersed, gregarious, uniloculate, globose to subglobose, carbonaceous, black. Ostiole central, apex well developed. Peridium multi-layered, sub-carbonaceous or coriaceous, with dark brown to hyaline cells arranged in a textura angularis. Hamathecium composed of numerous, filamentous, trabeculate pseudoparaphyses, septate, anastomosing between the asci and at the apex. Asci bitunicate, fissitunicate, broad cylindrical to cylindrical-clavate, bulbous pedicel, with an ocular chamber. Ascospores biseriate, broadly fusiform, septate, smooth-walled, with wall ornamentation, surrounded by a mucilaginous sheath.
Note: Anastomitrabeculiaceae is introduced to include Anastomitrabeculia, which is reported as a saprobe on bamboo culms. Anastomitrabeculiaceae is characterised by semi-immersed, coriaceous or carbonaceous ascomata with septate, trabeculate pseudoparaphyses and hyaline ascospores with longitudinally striate wall ornamentation, surrounded by a mucilaginous sheath. Anastomitrabeculiaceae formed a well-supported independent lineage closely related to Halojulellaceae, but Halojulellaceae differs by its cellular pseudoparaphyses and golden-brown ascospores.
Type genus: Anastomitrabeculia Bhunjun, Phukhams and K.D. Hyde.