Trichothyrinula Petr. Sydowia 4(1–6): 171 (1950).

MycoBank number: MB 5595; Index Fungorum number: IF 5595; Facesoffungi number: FoF 07918; – 2 morphological species (Species Fungorum 2020), molecular data unavailable.

Type species: Trichothyrinula sydowii Petr., Sydowia 4(1–6): 171 (1950).

Notes: Müller and von Arx (1962) introduced the second species, Trichothyrinula petrakii and assigned it to Trichothyriaceae. Lumbsch and Huhndorf (2010) placed Trichothyrinula in Microthyriaceae. However, Trichothyrinula is similar to Brefeldiella, but differs by its smaller globose to subglobose, apedicellate asci (Brefeldiella has cylindricclavate, short-pedicellate asci), and rough ornamented spore wall, with spores becoming brownish at maturity (Wu et al. 2014).


  • Trichothyrinula sydowii