Records of the rare and extremely osmophilic fungi Penicillium eremophilum and Xerochrysium dermatitidis on soy bars.

The strongly osmophilic and slowly growing fungi Penicillium eremophilum and Xerochrysium dermatitidis were found on soy protein bars. These fungi are worldwide rarely recorded and have been recorded in the Czech Republic for the first time. Penicillium eremophilum is exceptional in the genus Penicillium by the production of 2-spored asci and by the absence of a conidial state. Xerochrysium dermatitidis is predominantly known from food, but some affinity to clinical material has also been recorded. The identification of the strains was confirmed by DNA sequencing. Their macroscopic and microscopic descriptions with photographs completed with known literature data are given.