SUMMARY
A new genus is based on a Mucor-like species that produces conidia, sporangioles, and columellate, multispored sporangia. The new genus belongs in the Mucoraceae but morphologically it shows some relationship to the family Thamnidiaceae. A new species in the genus Mucor is reported belonging in the Petropolitanus section; it emits a strong skunk-like odor and is found only in the southern portion of California. The zygospore stage for both new taxa is illustrated and described.