Collection location: Yosemite National Park, California, USA [Click for map]
Found under mixed conifer forest.
Part of the Yosemite fungal survey.
sample num. YNP210
Found at Yosemite west gate parking area.
Location: lat 37.803 long -119.874
With a slight raphanoid odor. Light fibrous partial veil obs., with brown spore deposit. Veil disappears on many.
This is what people have been calling Hebeloma mesophaeum in the western US, but who knows if it is really or not.
7/20/2010 – adding some micro-details
The first micro-shot is of the gill edge at 400x in Meltzer’s. Here the cheilocystidia are numerous on a non-fertile edge. They are mostly cylindrical, some bent, some with a slight thickened base, all with blunt even ends. No pleurocystidia were obs.
The second micro-shot is of spores from the gill at 1000x in Meltzer’s. The spores are ellipsoid and beaned shaped, lightly roughen surface (hard to see in a photo), rounded ends, and no reaction to Meltzer’s. Roughly 8.5 um long.
Putting this together, this agrees pretty well with H. mesophaeum, so I wasn’t bad with the id. This is described fairly well in “Veiled Hebeloma of Western US” Smith, Evenson, Mitchel (1983). I think one of the very few times I’ve id’ed a mushroom using this book that I actually believe.
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Created: 2010-06-11 12:42:03 PDT (-0700)
Last modified: 2013-12-03 10:25:17 PST (-0800)
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