Collection location: Page Mill Rd., Palo Alto, California, USA [Click for map]
Found on wood chips.
Adding microscopic details -
The first micro-shot is of the gill edge at 400x in Meltzer’s. Here the lecythiform cheilocystidia can be seen, so this is really a Conocybe. Also there are no pleurocystidia, and there are 4-spored basidia.
The second micro-shot is of some cap tissue at 400x in Meltzer’s. The cap is hymeniform, so it is still a Conocybe, also there is no gelatin or pileocystidia.
The third micro-shot is of the stipe surface from the apex at 400x in KOH. Here the caulocystidia are also all lecythiform.
The forth micro-shot is of some spores from the stipe apex at 1000x in KOH. The spores are smooth, ellipsoid, brown, with a germ pore. The spore size is length – 13.77 +/- 0.81 (err 0.20) um, width – 7.95 +/- 0.44 um (err: 0.12) – q : 1.73 +/- 0.10, on 17 spores.
So, putting this together you get Conocybe tenera. The most important feature here is the lecythiform caulocystidia at the stipe apex. The other features prove it is a Conocybe, and are needed so it isn’t in some other genera, but are mostly common among most Conocybe. The caulocystidia here give you the species.
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Created: 2010-02-26 22:23:32 CET (+0100)
Last modified: 2010-02-26 22:23:32 CET (+0100)
Viewed: 232 times, last viewed: 2018-09-10 17:11:04 CEST (+0200)