Anastomitrabeculia Bhunjun, Phukhams. and K.D. Hyde, in Bhunjun, Phukhamsakda, Jeewon, Promputtha & Hyde, Journal of Fungi 7(2, no. 94): 12 (2021)

Index Fungorum number: IF556560, Facesoffungi number: FoF09522.

Etymology: Referring to the trabeculate pseudoparaphyses anastomosing between the asci and at the apex.

Colonies on natural substrate umbonate at the centre, circular, black shiny dots are visible on the host surface. Ascomata on surface of the host, immersed under a clypeus, gregarious, uniloculate, subglobose, carbonaceous. Ostiole orange pigment near ostiole. Peridium comprising multilayers of brown to hyaline cells of textura angularis, inner layers composed of thin, hyaline cells. Asci 8–spored, bitunicate, fissitunicate, broad cylindrical to cylindrical-clavate, with a bulbous pedicellate, rounded at the apex, with an ocular chamber. Ascospores biseriate, broadly fusiform, tapering towards the ends, hyaline, with guttules in each cell, constricted at the septa, with longitudinally striate wall ornamentation, surrounded by mucilaginous sheath.

Note: Anastomitrabeculia is established as a monotypic genus. It is characterised by the presence of carbonaceous ascomata, with orange pigment near ostiole and ascospores with longitudinally striate wall ornamentation. Anastomitrabeculia is morphologically similar to members of Pleosporales in having perithecioid ascomata, bitunicate asci and hyaline ascospores.

Type species: Anastomitrabeculia didymospora Bhunjun, Phukhams and K.D. Hyde.