Observation 129851: Psathyrella atrospora A.H. Sm.
When: 2012-12-05
Who: Byrain

Notes: In wood chips under some shrubs next to a paved path nearby a pool.

Spore with an apical germ pore in the face view and an oblique to somewhat eccentric pore in the side view. Spores mostly not truncate.
Spore range = 17 – 18 × 9 – 10 μm
Average spore = 18.4 × 9.63 μ
Q range = 1.7 – 1.89 (2)
Average Q = 1.83
20 spores measured in KOH

Cheilocystidia range = (32) 36 – 52 (58) x (10) 11 – 18 μ
Average cheilocystidia = 42.1 × 14.05 μ
20 cheilocsytidia measured in KOH
Pleurocystidia not observed.
Basidia 4-spored, some basidia & basidioles were yellow/brown in KOH
Hyphae in the hymenial trama and lamellar trama encrusted

Images

314188
314189
314190
314191
314192
314193
Spores, 1000x, mounted in KOH
314194
Spores, 1000x, mounted in KOH
314195
Spores, 1000x, mounted in KOH, 1μ divisions
314196
Cheilocystidia
314197
Pileipellis

Proposed Names

85% (1)
Eye3 Eyes3
Recognized by sight
Used references: North American Species of Psathyrella
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2013-03-04 13:39:27 PST (-0800)
Last modified: 2013-03-12 13:21:39 PDT (-0700)
Viewed: 115 times, last viewed: 2016-10-25 04:21:26 PDT (-0700)
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