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When: 2008-06-03
Collection location:
Bassetts, Sierra Co., California, USA [Click for map]
Who:
Douglas Smith (douglas)
Herbarium specimen available
Species Lists:
Spring mushrooms of the Sierras (28)
Notes: These were found and brought to me. They were in among moss, and with the brown caps, and the lighter colored gills it was thought they might be Galerina. I put them under the scope, and not so much. They have short cheilocystidia which were pointed to subcapitate, no pleurocysitidia. Which could be Galerina, but the spores gave it away. They were non-dextrinoid, thick walled, smooth, smokey-brown in KOH with a clear germ pore. Which makes these Psilocybe. They were found near another collection of older P. montana.
7/31/2008 – Getting back to this, and adding some photos.
The first micro-shot here is of the gill edge, at 400x in Meltzer’s. Here some of the relatively short cheilocystidia can be seen, with some acute and some blunt ends. Also the spores are non-dextrinoid
The second micro-shot is of the spores from the stipe apex at 1000x in KOH. Here the spores are clearly thick-walled, smooth with blunt ends and a large germ pore.
Ave spore size : length – 8.76 +/- 0.63 (err 0.12) um, width – 5.63 +/- 0.32 (err: 0.07) – q : 1.56 +/- 0.09, on 31 spores.
As found in the mountains, with moss, and clearly Psilocybe, this makes these P. montana by the current accepted concept around here. But Guzman makes a big deal in his monograph separating species by “subellipsoid” and “rhomboid” spores. P. montana is supposed to be on the “rhomboid” branch, and these spores I’m not sure look “rhomboid”.
But also I haven’t looked at that many Psilocybe spores, so who knows.
Observation Created: Fri Jun 13 16:51:08 -0700 2008
Last Modified: Thu Jul 31 12:38:23 -0700 2008 by Douglas Smith (douglas)
Viewed: 2 times, last viewed: Fri Nov 14 13:00:51 -0800 2008
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