Observation 77968: Psathyrella candolleana (Fr.) Maire
When: 2011-10-02
Who: Byrain
Herbarium specimen reported

Notes: Growing on a lawn from where a stump was removed and left lots of woody debris in the ground.

The spore are smooth with a germ pore and turn a dull cocoa brown in KOH, 30 were measured and the average size is 7.62×4.67 and the avg Q is 1.71.

Spore measurements taken are (In μ):

LxW
7×4
7×4
7×4
7×4
7×4
7×5
8×4
8×4
8×4.5
8×4.5
8×4.5
8×4.5
8×4.5
8×4.5
8×5
8×5
8×5
8×5
8×5
8×5
8×5
8×5
8×5
8×5
8×5
8.5×5
9×5
9×5
9×5
9×5

Images

172434
172435
172436
Spores from gill
1000x
Mounted in H2O
Divisions are 1μ
172437
Spores from gill
1000x
Mounted in KOH
Divisions are 1μ
172438
Spore print
1000x
Mounted in KOH
Divisions are 1μ
172439
Spore print mounted in KOH
172440
Cheilocystidia
1000x
Mounted in H2O
Divisions are 1μ
172441
Cheilocystidia
1000x
Mounted in H2O
Divisions are 1μ
172442
Pileipellis
1000x
Mounted in H20
Divisions are 1μ
172443
Pileus trama
100x
Mounted in KOH

Proposed Names

57% (1)
Recognized by sight
Used references: Keyed out in North American Species of Psathyrella.
Based on microscopic features: Spores 7-9 × 4-5μ, smooth with a germ pore turning dull cocoa brown in KOH, Cheilocystidia abundant, Pleurocystidia absent, pileus trama not staining cocoa brown in KOH.
94% (3)
Eye3 Eyes3
Recognized by sight
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2011-10-04 03:03:55 CDT (-0500)
Last modified: 2011-10-09 23:26:31 CDT (-0500)
Viewed: 193 times, last viewed: 2016-11-27 01:50:58 CST (-0600)
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