Observation 129954: Psathyrella longipes group
When: 2012-12-19
Who: Byrain

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

314568
314569
314570
314571
Spores, 1000x, mounted in KOH
314572
Spores, 1000x, mounted in KOH
314573
Spores, 1000x, mounted in KOH, 1μ divisions
314574
Spores, 1000x, mounted in melzers
314575
Cheilocystidia
314576
Caulocystidia
314577
Pileipellis, 400x, mounted in KOH, 2.44μ divisions

Proposed Names

61% (2)
Eye3
Recognized by sight
Used references: North American Species of Psathyrella
http://www.vielepilze.de/selten/psat/key/ekey.pdf
Based on microscopic features
83% (1)
Eyes3
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2013-03-08 09:01:10 JST (+0900)
Last modified: 2016-09-02 09:55:11 JST (+0900)
Viewed: 74 times, last viewed: 2017-06-16 08:42:31 JST (+0900)
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