Observation 75780: Psathyrella prona f. picta (Romagn.) Kits van Wav.
When: 2011-07-30
Collection location: Thoiry, France [Click for map]
Herbarium specimen reported

Notes: Found under spruce, fir, oak, beech, hornbeam.

First micro-shot is of the gill edge 400x in KOH. The cheilocystidia are of two type, lageniform, long and blunt, and the others small clavate to globose and yellow in KOH. No pleurocystidia were obs.

The second micro-shot is of spores from the gill at 1000x in KOH. The spores are dark grey, ellipsoid, smooth, with a large germ pore. The spore apr. size is 16 × 8 um, and the germ pore apr. 2-3 um wide.

These keyed out quickly as Psathyrella conopilea in Funga Nordica, which I think is another spelling of P. conopilus, which I don’t think is right. But this is with the big spores, and no pleurocystidia. Looking in “British species of Psathyrella”, it keys out better as P. prona. Except, it really should have rather obvious pleurocystidia, so I’m not sure what is up there. I didn’t see pleurocystidia. But under P. prona it mentions the pink colors of the cap as it dries in the forma picta, which has been seen in France. It also mentions the two types of cystidia, and how the globose to clavate cystidia are thick on the gills. The spores are rather large, but it also mentions a large variation of spore sizes reported for this. Perhaps some species here are waiting to get separated out.

Proposed Names

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Recognized by sight
Used references: “British species of Psathyrella”, Kits Van Wavern

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Created: 2011-09-08 11:19:10 PDT (-0700)
Last modified: 2016-09-01 21:21:28 PDT (-0700)
Viewed: 69 times, last viewed: 2016-09-26 20:27:00 PDT (-0700)
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