Some fungi have two different morphological forms, yeast and molds. If they do, it is likely that:
Dimorphic fungi Shows typical thermal dimorphism. They are hyaline septate molds at 25degC-28deg C (in environment) and yeast at 37degC (tissues). Always endemic Eg : Sporothrix scheinckii Penicillium marneffi Histoplasma capsulatum Blastomyces Coccidomyces Paracoccidiomyces