Observation 161178: Psathyrella corrugis group

When: 2014-03-10

Collection location: Mountain Park, Lake Oswego, Clackamas Co., Oregon, USA [Click for map]

Who: Oregon-learning

No specimen available

It was growing in wood chips
the cap is brown
The spore print is black
Gills are adnate
Cap is hygrophanous

Proposed Names

50% (3)
Recognized by sight
26% (1)
Recognized by sight
56% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Can this be a psathyrella even though it does not have a snapable stipe.
By: Oregon-learning
2014-03-11 23:27:35 CDT (-0400)

mykoweb.com says "Psathyrella corrugis is recognized by a brown hygrophanous cap (striate when fresh) that soon fades to pale buff-brown, the disc usually dingy yellowish-brown, and a slender stipe with a pruinose apex.

This specimen seems to meet that description.

However, Mushroomexpert.com says "Psathyrella is a… saprobic gilled mushrooms with dark spore prints … “snap-able” stems, and frequently hygrophanous caps (meaning the caps often change color dramatically as they lose moisture, sometimes resulting in two-toned specimens). The gills are neither mottled, nor do they dissolve.

This specimen definitely does not have a “snapable stem” and it appears that the gills are mottled.

The result is I am confused.

Created: 2014-03-10 23:42:22 CDT (-0400)
Last modified: 2016-09-02 20:00:32 CDT (-0400)
Viewed: 50 times, last viewed: 2017-06-18 01:50:19 CDT (-0400)
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