Despite recent progress achieved in the stabilisation of the systematic of thermophilic fungi, a few names remained unassesed. Among the three zygomycetous taxa considered Mucor miehei var. minor and M. thermohyalospora are regarded as possible synonyms of Rhizomucor miehei; Mucor thermoaerospora and its variant name M. thermoaerosporus represent a later synonym of the same. The ascomycete Talaromyces thermocitrinus is regarded as a possible synonym of T. thermophilus, the only obligate heat-tolerant fungus with a Penicillium anamorph. Similarly the synnematous hyphomycete Synnmukerjiomyces thermophilus proved to be a later name of Remersonia thermophila; the former was introduced as the type species of the new genus Synnmukerjiomyces, a generic entity invalidly published due to violation of several articles of the latest International Code of Botanical Nomenclature.