Observation 64585: Coprinellus P. Karst.

When: 2011-03-21

Collection location: John McLaren Park, San Francisco, California, USA [Click for map]

Who: Alan Rockefeller (Alan Rockefeller)

No specimen available

Growing on eucalyptus duff.

Cheilocystidia lageniform. Pleurocystidia, pileocystidia and caulocystidia absent.

Spores 9.3 – 10.3 × 5.1 – 5.8 micrometers, with a large germ pore.

10.33 × 5.67
9.73 × 5.16
9.73 × 5.41
9.31 × 5.33
9.31 × 5.84


Lamellar trama / Gill edge
Pileipellis longitudinal slice
Cheilocystidia, 10.92 micrometer divisions
Spores 1000x, 10.92 micrometer divisions
Spores 1000x, 10.92 micrometer divisions
Spores 1000x, 10.92 micrometer divisions
Spores 1000x, 10.92 micrometer divisions

Proposed Names

7% (2)
Recognized by sight
68% (2)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
By: Hamilton (ham)
2011-03-22 14:55:58 CDT (-0400)

Hmm. You’re probably right. I guess I’ll have to take a closer look next time as you have fogged my brain with nagging doubt again…

By: Erin Page Blanchard (CureCat)
2011-03-22 14:42:00 CDT (-0400)

If the two images in observation 44685 are the same species, then the cap is not pleated, but very striate-translucent when wet. The one pictured here actually looks pleated or ridged. If the mushrooms in the second image are in fact pleated, then your observation shows two different species.

By: Hamilton (ham)
2011-03-22 13:42:20 CDT (-0400)

Not saying it’s the same Psathyrella, but I found some that look sort of similar to that with the pleated cap and that in 44685. Second pic down…

By: Erin Page Blanchard (CureCat)
2011-03-22 13:21:02 CDT (-0400)

The gills are convincing (for Psathyrella), however, I still don’t know of a Psathyrella with a pleated cap. This is probably a Coprinellus instead.

Created: 2011-03-22 03:32:51 CDT (-0400)
Last modified: 2016-01-27 08:31:43 CST (-0500)
Viewed: 148 times, last viewed: 2019-08-28 16:28:45 CDT (-0400)
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