Observation 371927: Inocybe sensu lato (Site ID) (Inocybaceae)

When: 2019-06-30

Collection location: Seven Tubs Natural Area, Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Initially, I thought this was an entoloma. Presence of large hymenial cystidia and a cortina (not noticed until I zoomed in on the photo) say otherwise. The cortina strongly suggests Inocybe. However, I can’t help but wonder if the stringy material seen on the stipe and clinging to the cap margin is truly a cortina, or maybe just debris picked up from the surroundings. I say this because the cystidia (especially the last photo) look like Melanoleuca cognata cystidia.
Too immature for spores.


Proposed Names

51% (3)
Recognized by sight
29% (1)
Recognized by sight: assuming for the moment that the deposits seen on the stipe and cap margin are other than a cortina.
48% (2)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
Thanks for the votes.
By: Dave W (Dave W)
2019-07-05 22:56:39 CDT (-0400)

The more I think about this one, the less I think I know what it is. I guess the webby deposits are telltale. Big hymenial cystidia are of course common for Inocybe. But these lack ornamentation and appear to be thin-walled.