Zygosporium mycophilum (Vuill.) Sacc. is described and illustrated from a decayed apple, rotten by Botrytis cinerea and various species of Penicillium, in Czechoslovakia. It seems that the species is not an obligate mycoparasite, but is obviously mycophilous, growing always among other microscopic fungi. Conidia were oval to ellipsoidal, hyaline, 5–8.5 × 4–6 µm, minutely verruculose. This collection is a first record from Czechoslovakia.
Holubová-Jechová V. (1990): Zygosporium mycophilum (Vuill.) Sacc. in Czechoslovakia. – Česká Mykologie 44(2): 106–108.
