reported as similar to sinuatum. This species is reported to sometimes have whitish gills at first. These really look like what I generally ID as sinuatum. Found some yesterday, and I see that others have been MO posting similar Es east of the Rockies in NA.

http://mushroomobserver.org/52024?q=1cKl

wrong year by mistake…

Found that info in Arora MD page 174. It is in the Key to Lyophyllum & allies # 7.
“7. Found in sphagnum bogs, cap usually with an umbo; stalk thin fragile often long L. palustre
7.Similar to above but not growing in bogs. L rancidum and others. "

and it’s possible that it is a Lyophyllum but the cap really looks like a Entoloma and the gills are washed out a little, so…

I think she (he?) fixed the obs. date here, it is now sept., except it is now Sept. 2010?? (Has that happened yet and I missed it? I hate it when I loose months like that…)

But this could be Lyophyllum really, there are a lot of different Lyophyllum out there in North America, most of them not described. Only a few have blackening staining, and only some are clustered. I’m not sure anyone has ever studied this genus in North America?

BTW – Where did you get info on those species that you mention?

(p.s. personally I kinda think this looks like an Entoloma, but those gills are awfully white…)

This has a distinctive umbo on top. As far as I know, there are only two such Lyophyllums that have such an umbo L. palustre and L rancidum. The later favors bogs. Although the manner that it is growing is possible, solitary, most lyophllum have a clumping Characteristic from what I’v read. Also Lyophyllum have staining characteristics that I do not see on this.

Check that this has white spores. It could have pinkish-brown spores, and turn out to be a young Entoloma.