Observation 77027: Galerina subclavata Kühner

When: 2011-09-17

Collection location: Yosemite National Park, California, USA [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under lodgepole pines, and mixed conifer, in mixed moss.

Part of the Yosemite National Park Fungal Survey, num. YNP1923.

Adding micro-details:

The first micro-shot is of a gill edge at 400x in Meltzer’s. There are no cystidia obs. here, even though there are lots of basidia obs. on the edge. 2-spored basidia were obs., and the spores are non-dextrinoid.

The second micro-shot is of the pileus context in radial section at 400x in Meltzer’s. The cap surface is a cutis, with no gelatin nor pileocystidia. The hyphae near the surface were incrusted with pigments.

The third micro-shot is of the stipe apex at 400x in KOH. The caulocystidia are tibiiform and capitate, numerous at the apex and base. No clamp connections were obs.

The forth micro-shot is of spores on the stipe apex at 1000x in KOH. The spores are ellipsoid, tan, finely roughened, no plage was obs. The apr. size is 14 × 7 um.

The lack of cystidia was a problem, the gill edge did not look abused, but the mushroom did show signs of age. But with the caulocystidia being tibiiform, the non-dextrinoid spores, and the lack of clamp connection, that gets the species close enough. With the 2-spored basidia, and the large spore size, this puts this into Galerina subclavata.

There is a problem, I’ve only seen this one clearly once before, and in Europe. At that time, one of the key features was the pileocystidia, and this one doesn’t have that. But that is the best id one can make at this time.

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Based on microscopic features: As described in the text.

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Created: 2011-09-23 10:33:53 MDT (-0600)
Last modified: 2013-12-03 11:25:24 MST (-0700)
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