3 species. Saprobic on submerged substrates in freshwater or brackish habitats.
Sexual morph: Ascomata solitary or gregarious, partially immersed to superficial, globose to subglobose, black, and coriaceous to carbonaceous, papillate, ostiolate, with a neck and periphyses. Peridium thickwalled, brown to black. Paraphyses early deliquescent, irregularly wide, septate, hyaline, tapering towards the apices and embedded in a mucilaginous matrix. Asci 8-spored, unitunicate, cylindrical to clavate, indistinctly pedicellate, apex with a J-, subapical ring. Ascospores uniseriate or bi-seriate to tri-seriate, hyaline to brown, 1–7-septate, fusoid, falcate to lunate, straight or curved, cell wall smooth or verrucose, with or without appendages. Asexual morph: Hyphomycetous. Conidiophores macronematous, mononematous, erect, pale brown to brown, paler toward the apex, straight or flexuous, smooth. Conidiogenous cells enteroblastic, monophialidic, integrated on hyphae, terminal, sometimes erect on hyphae, pale brown, subcylindrical, ampulliform. Conidia unicellular, hyaline, fusoid-ellipsoid, obovoid or ellipsoid, apex obtuse or broadly rounded, tapering to a truncate base, smooth-walled
Type genus: Tirisporella E.B.G. Jones, K.D. Hyde & Alias
Notes: Tirisporellaceae was established by Suetrong et al. (2015) to accommodate the genera, Tirisporella and Thailandiomyces, based on morphology and molecular phylogeny. Subsequently, Abdel-Wahab et al. (2017) introduced Bacusphaeria (type species: B. nypae), which formed a distinct clade in this family. Tirisporellaceae retains its uniqueness in having large, black perithecial ascomata with an ostiolate neck, a thick-walled peridium, cylindrical asci and 2–3- seriate, 1–7-septate, fusoid ascospores, with or without appendages. Sequence data are available for the three genera of this family and phylogenetic analyses confirmed their placement in Tirisporellales (Jones et al. 2015). Hyde et al. (2017) carried out divergence estimates of Sordariomycetes and estimated the stem age of Tirisporellaceae as 112 MYA.
Abdel-Wahab MA, Dayarathne MC, Suetrong S, Guo SY et al. (2017) New saprobic marine fungi and a new combination. Botanica Marina 60, 469–488.
Hyde KD, Maharachchikumbura SSN, Hongsanan S, Samarakoon MC et al. (2017) The ranking of fungi: a tribute to David L. Hawksworth on his 70th birthday. Fungal Diversity 84, 1–23.
Hyde KD, Norphanphoun C, Maharachchikumbura SSN, Bhat DJ et al. (2020) Refined families of Sordariomycetes. Mycosphere 11, 305–1059
Jones EBG, Suetrong S, Sakayaroj J, Bahkali AH et al. (2015) Classification of marine Ascomycota, Basidiomycota, Blastocladiomycota and Chytridiomycota. Fungal Diversity 73, 1–72.
Suetrong S, Klaysuban A, Sakayaroj J, Preedanon S et al. (2015) Tirisporellaceae, a new family in the order Diaporthales (Sordariomycetes, Ascomycota). Cryptogamie Mycologie 36, 319–330.