A series of Xerophilic Chrysosporium species

Xerophilic Chrysosporium species related to C. farinicola were often isolated from uneaten provisions (pollen-and-nectar mixture) of mason bees (Osmia spp.). The fungi have an optimal growth rate on media which are 2 to 3 molar in regard to glucose, exhibit some growth up to 3.6 molar glucose, and initiate a new increased growth rate when the glucose crystallizes out from these supersaturated media. Seven of these species and three varieties are described and separated into a Farinicola series of Chrysosporium species.