Observation 79566: Psathyrella (Fr.) Quél.
When: 2011-10-10
Who: Byrain
Herbarium specimen reported

Notes: Growing under an unidentified hardwood tree in grass alongside Psathyrella candolleana (I was careful to not include these in the collection), buried wood is likely to be present. These specimens may have a veil, but they loose most (All?) traces of it quickly. The stipe discolors little if at all, the smell + taste are mild/indistinct, and the cap surface wrinkles as it dries.

The spores were smooth with a germ pore and are 8-9.5 (10) x 5-5.5 μ from 30 spores measured, the average size is 8.9 × 5.13 μ, and the average Q is 1.74. None of the cystidia react with KOH.

Same location as observations 74024 & 64612.

Images

174863
174864
Spores on a gill
1000x
Mounted in KOH
1μ divisions
174865
Spores on a gill
1000x
Mounted in H2O
1μ divisions
174866
174867
Pleurocystidia
1000x
Mounted in KOH
1μ divisions
174868
Caulocystidia
1000x
Mounted in KOH
1μ divisions
174869
Pileipellis
1000x
Mounted in H2O
1μ divisions

Proposed Names

85% (1)
Eye3 Eyes3
Recognized by sight: subgenus Psathyrella subsect. Obtusatae or subsect. Limicolae, absent or evanescent veil, terrestrial or buried wood habitat
Used references: North American Species of Psathyrella
Based on microscopic features: Spores 8-9.5 μ long, pleurocystidia present with an obtuse apex

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
No one has commented yet.

Created: 2011-10-14 23:03:31 PDT (-0700)
Last modified: 2011-10-15 02:08:45 PDT (-0700)
Viewed: 51 times, last viewed: 2016-09-01 22:08:36 PDT (-0700)
Show Log