Seen at the Santa Cruz Fungus Fair

Strong green corn odor.

The ITS sequence matches 100% with other sequences from Canada, Mendocino County, Idaho, British Colombia, Oregon and Washington. Since all of the many sequences in GenBank are from the west coast and the type collection of I. sororia was collected in Ann Arbor, Michigan, it is very likely that this is a new species. In the paper “Taxonomy and evolutionary relationships within species of section Rimosae (Inocybe) based on ITS, LSU and mtSSU sequence data” available at, our west coast species is listed as neither I. sororia nor I. rimosa, but something undescribed.

Herbarium specimen stolen in an auto breakin.

Species Lists



Proposed Names

87% (1)
Recognized by sight: I. sororia was described from Michigan, however all of the many sequence matches in GenBank are from the west coast of North America.

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