Tripospermum Speg., Physis, Rev. Soc. Arg. Cienc. Nat. 4(no. 17): 295 (1918).
MycoBank number: MB 10316; Index Fungorum number: IF 10316; Facesoffungi number: FoF 08051; 27 morphological species (Species Fungorum 2020), 3 species with molecular data.
Type species – Tripospermum acerinum (P. Syd.) P. Syd., Physis, Rev. Soc. Arg. Cienc. Nat. 4(no. 17): 295 (1918).
≡ Triposporium acerinum P. Syd., Hedwigia 38(Beibl.): (144) (1899).
Notes – Tripospermum myrti (CBC 437.68) formed a lineage within Neodevriesiaceae (Quaedvlieg et al. (2014). However, it forms a lineage outside Neodevriesiaceae in our phylogenetic tree (Fig. 3). Chomnunti et al. (2012) noted that Trichomerium, a sooty mould genus from Eurotiomycetes, possibly has Tripospermum as its asexual morphs. Crous et al. (2014a) found a Tripospermum-like taxon and sequence data indicated that it belongs to Trichomerium, thus they named it as Trichomerium dioscoreae. A tripospermum-like conidial taxon was found in association with sooty mould species Trichomerium gloeosporum (Hongsanan et al. 2016b), and its sequence data (ITS) showed it as the asexual morph of Trichomerium gloeosporum (Hongsanan et al. 2016b). Trichomerium chiangmaiensis was introduced by Maharachchikumbura et al. (2018), and its phylogenetic placement is in Eurotiomycetes. Since Tripospermum species formed in two different classes, we suggest to treat Tripospermum in Neodevriesiaceae as Trichomerium sensu lato until sequence data of the type species is available.