Kathistaceae Malloch & M. Blackw., Can. J. Bot. 68(8): 1719 (1990)

Index Fungorum number: IF81991; Facesoffungi number: FoF06874; 6 species.

Saprobic on herbivore dung and insects. Sexual morph: Ascomata globose to subglobose, with long necks composed of parallel hyphae, straight curved ostiolar setae, with sphaerical sporebearing structures (sporidiomata), cylindrical unicellular extension present. Peridium thinwalled, pseudoparenchymatous, of cells of textura angularis in surface view and thickwalled in cross-section. Paraphyses lacking. Asci 8spored, unitunicate, ellipsoidal to fusoid, thinwalled, evanescent at maturity, arranged in a basal fascicle. Ascospores clavate to falcate, hyaline or pale brown, 01 or transversely multiseptate. Asexual morph: Conidiomata superficially similar to the ascomata, sphaerical, hyaline, without hyphal attachments, single wall layer thick at the base, with or without ostiole, when present ostiole comprising with a long neck. Conidiomatal wall composed of flattened cells of textura angularis. Conidiogenous cells enteroblastic, phialidic, hyaline, and smooth. Conidia sphaerical or cylindrical, produced in the centre of the conidiomata, hyaline, smooth, 01 or multiseptate, escaping in a continuous chain through the ostiolar neck (adapted from Maharachchikumbura et al. 2016b).

Type genus Kathistes Malloch & M. Blackw.

Notes Malloch & Blackwell (1990) established Kathistaceae to accommodate Kathistes with the type species K. calyculata, and two more species, K. fimbriata and K. analemmoides. Kathistaceae has sufficient taxonomic distance from Pyxidiophoraceae. Therefore, it was reported as a family in Ophiostomatales (Malloch & Blackwell 1990). Maharachchikumbura et al. (2016b) provided an updated outline of Kathistaceae with the genera Kathistes, Mattirolella, and Termitariopsis.

Ecological and economic significance of Kathistaceae

Kathistaceae species are saprobic on herbivore dung and insects (Malloch & Blackwell 1990).