Observation 115140: Psathyrella candolleana (Fr.) Maire
When: 2012-10-29
Who: Byrain
Herbarium specimen reported

Notes: Spore range (20 measured) = 7 – 9 × 4 – 5 μ
Average spore = 8.3 × 4.88 μ
Q range = 1.6 – 2
Average Q = 1.71
Cheilocystidia range (20 measured) = 34 – 54 x (8) 9 – 13 (13.5) μ
Average cheilocystidia = 41.75 × 10.43 μ
Pleurocystidia absent.
Caulocystidia meaured = 38×12, 45×12, 47×13, 52×9, 55×12, 74×10 μ
Basidia 4-spored.
Clamps observed on the stipe hyphae & at the base of the caulocystidia.
Has a pronounced sweet & earthy smell.

These were growing in a lawn under what could have been an Acacia, at first I thought this could be P. incerta, but the spores are too large and this matches P. candolleana better despite the pale cap. The sweet odor also seems a bit unusual.

Images

277468
277467
277469
Spores, 1000x, mounted in KOH
277470
Spores, 1000x, mounted in H2O, 1μ divisions
277471
277472
277473
Pileipellis, 1000x, mounted in KOH, 1μ divisions

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: 2012-10-31 21:40:28 CDT (-0400)
Last modified: 2012-11-01 01:28:18 CDT (-0400)
Viewed: 58 times, last viewed: 2016-06-15 09:56:15 CDT (-0400)
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