Pseudodidymella C.Z. Wei, Y. Harada & Katum., Mycologia 89(3): 494 (1997).
MycoBank number: MB 27703; Index Fungorum number: IF 27703; Facesoffungi number: FoF 08301; 2 morphological species (Species Fungorum 2020), 2 species with molecular data.
Type species – Pseudodidymella fagi C.Z. Wei, Y. Harada & Katum., Mycologia 89(3): 496 (1997).
Notes – Pseudodidymella was originally characterized by lenticular ascomata with a well- developed basal stroma, bitunicate, cylindrical asci with a short stipe, fusiform, 1-septate, hyaline ascospores, pycnopleiospora-like asexual morph and produce mycopappus-like propagules in their asexual morphs (Wei et al. 1997, 1998, Gross et al. 2017, Hashimoto et al. 2017a). Pseudodidymella is similar to Mycodidymella, but can be distinguished by its sporodochial conidiomata and appendage-bearing conidia (Wei et al. 1998, Gross et al. 2017). Hashimoto et al. (2017a) proposed to include Pseudodidymella in Pseudodidymellaceae based on mycopappus-like propagules and phylogenetic analysis. There are two species accepted in Pseudodidymella with molecular data, P. fagi and P. minima. We retain Pseudodidymella in Melanommataceae.