Observation 65395: Inocybe kauffmanii A.H. Sm.

When: 2011-01-16

Collection location: Los Trancos Preserve, Palo Alto, California, USA [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under live oak.

The first micro-shot is of the gill edge at 400x in KOH. The cheilocystidia are metuloid, with long thick-walled necks and all heavily encrusted. Pleurocystidia were obs., numerous and similar.

The second micro-shot is of spores from the gill at 1000x in KOH. The spores are ellipsoid, pointed, smooth, tan. The apr. ave. size is 8 × 5.5 um.

Looking at various keys for Inocybe, I seem to get a different species from each one. The encrusted cystidia are important, and the smooth spores. Champignons de Suisse doesn’t have a good one for this, Funga Nordica kinda id’s as Inocybe langei, but they don’t mention the veil tissue on the disc. The Inocybe key to the NW, by Oluna Ceska kinda id’s to Inocybe ochroalba. But then comparing to Funga Nordica for that one, the cystidia should be short and rounded, so that isn’t good. The best id from the “Inocybe key to CA”, Nishida, seems to be Inocybe kauffmanii, and I can’t find another source to say it isn’t that… so I’ll go with that id.

Proposed Names

86% (1)
Eye3 Eyes3
Recognized by sight
Used references: “Inocybe key to CA”, Nishida
Based on microscopic features: As described in the text.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2011-04-11 07:07:11 CDT (-0400)
Last modified: 2011-04-11 07:14:54 CDT (-0400)
Viewed: 84 times, last viewed: 2017-12-23 20:38:03 CST (-0500)
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