Observation 65825: Psathyrella (Fr.) Quél.
When: 2011-03-26
Who: Byrain
Herbarium specimen reported

Notes: Growing from old rotting wood chips + Casuarina equisetifolia duff.

Spore range = (15) 16 – 20 (21) x 8 – 10 (11) µ
Average spore = 17.75 × 9.65 µ
Average Q = 1.84
20 spores measured.

Cheilocystidia rare and hard to find, pleurocystidia absent.

Images

141823
141824
141825
141826
230719
Spores, 1000x, mounted in KOH
230720
Spores, 1000x, mounted in KOH
230721
Spores, 1000x, mounted in KOH, 1 µ divisions
230722
230723
Pileipellis, 1000x, mounted in KOH, 1 µ divisions

Proposed Names

91% (2)
Eye3 Eyes3
Recognized by sight
28% (1)
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

Comments

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This is the same as…
By: Byrain
2012-06-24 17:00:03 CDT (-0500)

observation 97004, which was growing a few blocks away in the same kind of habitat. And again this keys out easily to Psathyrella thomii, except that species is described as starting white then aging brown and growing “On bagasse piles from sugar mills in wet places” in Louisiana. It is also supposed to be have slightly shorter and wider spores with a bubble like germ pore, they’re not described as truncate either.

Created: 2011-04-19 18:14:18 CDT (-0500)
Last modified: 2012-06-24 16:59:58 CDT (-0500)
Viewed: 62 times, last viewed: 2016-10-20 15:54:18 CDT (-0500)
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