Cladophialophora Coccidioides sp. Dermatophytes Epicoccum spp. Zygomycetes Penicillium spp. Description Colonies are rapid growing, flat, velvety, woolly, or cottony, initially white, becoming blue green, gray green, olive gray, or some similar color. Drops of fluid, sclerotia, cleistothecia, or any combination of these may be found.
Conidiophores are erect, branched, hyaline or pigmented.
Conidia are 1-celled, globose to ovoid, smooth or rough, hyaline or pigmented, arising as basipetal chains. The entire conidial structure resembles a brush. The genus Penicillium is characterized by rapidly growing colonies having conidial structures resembling brushes. Penicillium marneffei is the only species of the genus that has a yeast-like phase induced by temperature. Laboratory precautions Handle with care, but special precautions are not necessary.