Notes:
Spores are inamyloid, 3-3.5 × 5.5-6 µm.

Proposed Names

46% (2)
Recognized by sight: Serrated gills, cartiliginous stipe, buttery cap texture
63% (3)
Recognized by sight
85% (1)
Recognized by sight: The young caps were not dark like G. earleae and the gills were white rather than yellow
Used references: Mushroom Expert

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= Observer’s choice
= Current consensus

Comments

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Probably not Rhodocollybia lentinoides
By: Alan Rockefeller (Alan Rockefeller)
2017-05-11 15:13:50 CDT (-0400)

That species is reported under spruce, is rare and has an equal stipe. I don’t see any spruce needles in your photo, and the stipe on yours is clavate. Yours is probably in the R. butyracea group. I am not sure how many species are in that group in the east. Most or all Rhodocollybia have serrated gill edges.

Right on!
By: Alden Dirks (aldendirks)
2017-05-11 14:43:17 CDT (-0400)

Great, that’s good to know. Yeah, the cap had a very lubricous texture. I couldn’t quite describe it. Not quite waxy, but definitely smooth.

Is the buttery cap indicative of Rhodocollybia or all colybioid mushrooms (Gymnopus, Collybia, etc.)?

Mushroom Expert lists Rhodocollybia lentinioides as a unique collybioid mushroom with serrated gills. I don’t have microscopic information to confirm, but do you think this could be R. lentinioides?

Thanks for the help!
Alden

I would expect a white print
By: Alan Rockefeller (Alan Rockefeller)
2017-05-11 14:37:28 CDT (-0400)

from these…..Some sources say pinkish-cream. The gills are white in all stages of development, so the print shouldn’t be expected to be pink like Pluteus.

Check the texture of the cap, it should feel lubricous, as if it was partially made from butter.

white spore print
By: Alden Dirks (aldendirks)
2017-05-11 13:53:44 CDT (-0400)

I forgot to mention that the spore print was white. Rhodocollybia apparently have a pinkish spore print, is that true?

Created: 2017-05-11 12:25:14 CDT (-0400)
Last modified: 2019-04-28 16:03:11 CDT (-0400)
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