Spore print is white
(or maybe possibly a little salmon)
A prominent feature is the striations (ridges) on the stipe
I thought this might be:
Pluteus tomentosulus
Dick B. said:
The spore print doesn't seem dark enough for a Pluteus.
This mushroom reminds me of Rhodocollybia maculata which grows from rotten wood and occurs in the spring. The clean removal of the stipe is interesting. I've seen other examples in the old Collybia group where you could twist out the stipe with minimal disturbance of the gills. Never tried it with a R. maculata though.-
Leah said:
.. would rule out Pluteus due to
the white spores. I've seen the pink on Pluteus species spores vary from bright
hot pink to dull brownish pink, but never so light that they might be considered
whitish.
Sava Said:
Rhodocollybia maculate