(blast-ŏ-mī′sēz″)

[blasto- + Gr. mykēs, fungus]
A genus of yeastlike budding fungi pathogenic to humans. At room temperature these fungi grow in a moldlike mycelial form, and at body temperature in a yeastlike form.

Blastomyces brasiliensis

The former name of the yeast now called Paracoccidioides brasiliensis.

Blastomyces dermatitidis

The species that causes North American blastomycosis, a rare fungal infection in humans.