von Klopotek A
Arch Microbiol. 1976 Mar 19;107(2):223-4. doi: 10.1007/BF00446844.
Thielavia heterothallica spec. nov. is described as a heterothallic, thermophilic fungus with spherical, black, non-ostiolate cleistothecia; elliposidal evanescent asci which contain eight one-celled ellipsoidal ascospores, darkening to deep brown to black, with one germ pore. The conidial state is Chrysosporium thermophilum (Apinis) von Klopotek.