Type: Penicillium lilacinum Thom. Etymology: The generic name refers to the purple colored conidia produced by its type species, Purpureocillium lilacinum. Description: Colonies on MEA moderately to fast growing consisting of either a basal or compact crustose felt of numerous conidiophores with a floccose overgrowth of aerial mycelium. Colonies at first white, becoming pink and lilac with the onset of sporulation. Reverse usually in shades of purple or yellow. Conidiophores arising from submerged hyphae, mononematous, stiff, verticillate; phialides ovate to cylindric with distinct neck or erect and densely grouped, forming verticils of branches and cylindrical phialides without or with very short necks. Conidia in dry divergent chains, straight to slightly curved or ellipsoidal to fusiform, slightly roughened, purple in mass.

Reference: Luangsa-ard J, Houbraken J, Doorn TV, et al. (2011). Purpureocillium, a new genus for the medically important Paecilomyces lilacinus. FEMS Microbiology Letters 321: 141–149. https://doi.org/10.1111/j.1574-6968.2011.02322.x