Observation 146776: Cortinarius (Pers.) Gray

When: 2013-09-27

Collection location: Jamison City, Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Stipe rooted in humus near a decaying log. Brownish/tannish spore print.

Proposed Names

29% (1)
Recognized by sight
6% (4)
Used references: Arora, Mushrooms Demystified. Has same general shape as Inocybe sororia, which this is not, white-edged gills.
52% (1)
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Thanks Linas.
By: Dave W (Dave W)
2015-02-03 08:11:24 CST (-0600)

My old 400x scope often fails to show presence of spore ornamentation. But the spores do otherwise look like from a Cort. Interesting species…? Spore print color unusual for a Cort (light brown).

It’s a Cortinarius …
By: Linas Kudzma (baravykas)
2015-02-03 07:48:32 CST (-0600)

I scoped it and the spores are finely textured in the typical Cort way.

When I first saw this…
By: Dave W (Dave W)
2013-09-30 17:25:57 CDT (-0500)

I thought it was an Entoloma.

Zoom on spores shows some with nucleus (oil drop?) of different color, something I do not associate with Inocybe. Spores seem unifomely elongate elliptic for Inocybe. Usually I find a few bean-shaped spores for the “elliptic spore” types. Rooting in humus seems a bit odd for Inocybe. No noticable odor.

Spore print color, some macro features, and availability of other Inocybes (during a time when few other genera were represented) support the Inocybe proposal. I’ll reduce confidence on my “Agaricales” and maybe Linas Kudzma will notice the “Inocybe” post. I have the dehydrated cap.

Created: 2013-09-29 21:25:49 CDT (-0500)
Last modified: 2015-02-03 11:53:43 CST (-0600)
Viewed: 50 times, last viewed: 2017-06-16 14:41:25 CDT (-0500)
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