Observation 108886: Inocybe napipes J.E. Lange

When: 2012-09-04

Collection location: Point Reyes National Seashore, Marin Co., California, USA [Click for map]

Who: Ron Pastorino (Ronpast)

Specimen available

Caps up to 5.8 cm across.
base of stipe submarginate.
Spores ~ 8.0-9.0(10.0) X 6.0-7.3 microns and nodulose.
Moderate amount of Cheilocystidia in the range of 65 X 17 microns and much of it with encrusted apicies. Pleurocystidia also present, similar in size but usually without the bad hair.
Did not detect any strong odor.
They were growing in a fog drip area(otherwise dry) on a ridge probably under Doug Fir or some other conifers.
I’m tentatively going with a weak I. napipes ID because that is where Matheny’s Key took me. The spores and cystidia generally are also similar. The key doesn’t mention odor, but other references indicate this species should have a rather strong unpleasant odor.


Spores in KOH @ 1000X.
Cheilocystidia in Congo red @ 1000X.
Cheilocystidia in Congo red @ 1000X.

Proposed Names

29% (1)
Eye3 Eyes3
Used references: Artificial Key to Common and Noteworthy Species of Inocybe from the Pacific Northwest by P. Brandon Matheny.
Fungi Non Delineati? Inocybe alpine e subalpine by E. Ferrari

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2012-09-06 11:25:32 CDT (-0400)
Last modified: 2012-09-06 11:25:36 CDT (-0400)
Viewed: 52 times, last viewed: 2018-01-07 00:05:49 CST (-0500)
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