When: 2012-12-19

Collection location: Stebbins Cold Canyon Reserve, Solano Co., California, USA [Click for map]

Who: Byrain

Specimen available

Notes:
Found alongside the trail under oak and some other hardwoods.

Spore wall ~1-2 μm thick.
Spore range = 12 – 15 (17) x 8 – 9 μ
Average spore = 13.37 × 8.18 μ
Q range = 1.44 – 1.88
Average Q = 1.64
30 spores measured.

Cheilocystidia range = (32) 35 – 55 (57) x (7) 8 – 15 μ
Average cheilocystidia = 45.44 × 11.28 μ
25 cheilocystidia measured.

Caulocystidia range = 22 – 97 (102) x 8 – 14 (19) μ
Average caulocysitidia = 62.4 × 11.45 μ
20 caulocystidia measured.

Pleurocystidia absent, 4-spored, and clamps found at the base of the caulocystidia.

Images

Spores, 1000x, mounted in KOH
Spores, 1000x, mounted in KOH
Spores, 1000x, mounted in KOH, 1μ divisions
Spores, 1000x, mounted in melzers
Cheilocystidia
Caulocystidia
Pileipellis, 400x, mounted in KOH, 2.44μ divisions

Proposed Names

61% (2)
Recognized by sight
Used references: North American Species of Psathyrella
http://www.vielepilze.de/selten/psat/key/ekey.pdf
Based on microscopic features
84% (1)
Recognized by sight

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus

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Created: 2013-03-08 01:01:10 CET (+0100)
Last modified: 2016-09-02 02:55:11 CEST (+0200)
Viewed: 74 times, last viewed: 2017-06-16 01:42:31 CEST (+0200)
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