While I can get to Xeromphalina easily in Arora, I can’t seem to make this collection fit any of the species described there.
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Well, if you keep finding these, it would be good at some point to get the spore print, so you can put it in a better genus than some of these guesses. The stipe looks right for Xeromphalina, which has a fairly tough stipe, with a dark hard covering. The hyphae on the stipe are cool under the scope, contorted, interwoven and darkly pigmented. Alnicola/Naucoria would have a more fibrous stipe without the hard surface.
But there are some other weird ones from up there, so making sure the spore print is white would be good.
Did you check the PWN key concil page on Xeromphalina, I think there was one mentioned there that had non-decurrent gills.
I suggested Xeromphalina as “promising.” You are correct to note the gills are not decurrent and notched. Also kind of matches Alnicola, but specimen not found with alder, which I would suspect with a name like Alnicola. Just under the cap there are small white scales on the stipe, conceivably part of a partial veil. Stipe is hollow. Found several of these, but almost always singly in a stand with abundant Western hemlock an occasional D. fir or Western redcedar.
You should try and make sure about the white spores here, although it does mostly look like Xeromphalina. Although most Xeromphalina have decurrent gills, and this one does not. There is at least one species of non-decurrent Xeromphalina out there, and I am not sure this is covered in Arora. There is a key to Xeromphalina by the PNW key council that does mention the non-decurrent species. They also mention about species that are bitter or not, did you check if this one was bitter?
The problem with the ones I’ve found that are non-decurrent, unlike the decurrent species, they appear singly or just a few. And usually with conifer debris and moss. So making a mess of a few for spore prints and tasting isn’t really practical.
Created: 2009-10-05 00:25:14 ADT (-0300)
Last modified: 2009-10-05 00:25:14 ADT (-0300)
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