Observation 4936: Tricholomopsis sulphureoides (Peck) Singer
When: 2007-11-13
No herbarium specimen

Notes: small, very young cluster of mushrooms in soil of mixed forest
ST: ~20×2mm, cap-color, dry, smooth, whitish fuzz at base
CAP: 12mm wide, convex, brownish golden, smooth, dry, margin curled under when young
FLESH: whitish, ~2mm thick, firm, unchanging
VEIL: is that an evanescent cortina?
GILLS: adnate, pale yellow, 2-3mm deep, unbr, not straight
SPORE: print white
The key in Demystified suggests Cyptotrama chrysopeplum, but gives little description, just that it is small and yellow with mealy particles. Mine has no particles. And it doesn’t mention if it clusters, presumably an important feature that would’ve been mentioned.

A (very slightly) better possibility is Armillariella tabescens in the A. mellea group, but little is said about its size or color, just that it is clustered on the ground in the east, lacks a veil, and has whitish spores. Mine certainly seems to have a veil, and I was under the impression that the A. mellea group were substantial mushrooms.

I suppose it could well be a Lyophyllum or Collybia, but the veil might rule them out, as well. Demystified doesn’t describe any small Lyophyllum, and none of the Collybia he describes sounds close.

Proposed Names

-56% (1)
Recognized by sight
28% (1)
Recognized by sight
-34% (2)
Recognized by sight
61% (2)
Recognized by sight: If it was on buried wood…

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I checked my notes
By: Jason Hollinger (jason)
2011-04-24 21:08:31 EDT (-0400)

This is all I’ve got. I have no photo of the print, nor did I keep it. Four years ago I’m sure I was completely incapable of distinguishing shades of white, so it could be anything. Wish I could be more helpful. Thanks for looking at it again!

How whitish
By: Danny Newman (myxomop)
2011-04-24 20:59:52 EDT (-0400)

are your whitish spores? Otherwise looks a bit Pholiota-ish.

Created: 2007-11-15 16:35:41 EST (-0500)
Last modified: 2014-10-28 20:32:28 EDT (-0400)
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