Observation 157643: Coprinopsis P. Karst.

On display at the Santa Cruz Fungus Fair.



Proposed Names

87% (1)
Eye3 Eyes3
Recognized by sight: The west coast version of Psathyrella ulignicola has been sequenced and the ITS region is 91% similar (647/710) to the holotype of P. uliginicola. See http://scmycoflora.org/sequencing/specimen.php?project=6 and http://www.ncbi.nlm.nih.gov/nucleotide/557116293. This species falls within Coprinopsis.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Byrain
2014-01-11 16:44:45 -05 (-0500)

Alan or anyone else, have you ever seen this species with a really white cap in age? Smith’s photos (Plate 31) show a species with a really white cap.
See here…

Smith also wrote this…

“This is a large species with gray evident in the pileus before
the color changes occur which are associated with maturation of the spores.”

And I think its equally if not more likely that Smith didn’t mess up, he lists 29 collections including the type under his material examined section. None of which are from California, instead he looked at collections from Idaho, New Mexico, Utah & Wyoming, but he also didn’t look at very many Psathyrella collections from CA in general…

I was thinking that…
By: Byrain
2014-01-11 14:53:39 -05 (-0500)

It worked well. ;)

Yea, I think that is very possible, however the description needs to be revised then. We should also look at the P. luteopallida type too.

Two reasons
By: Alan Rockefeller (Alan Rockefeller)
2014-01-11 14:50:51 -05 (-0500)

1) I love watching your reaction when this species comes up. In fact, it is the only reason I took this picture.

2) I believe that when we get our hands on the type collection, the spores will be the same as our west coast material.

Let me elaborate
By: Byrain
2014-01-11 14:40:10 -05 (-0500)

(Once again)

Psathyrella uliginicola spores are described as…

“Spores 10-12 (-15) x 5-6 p” smooth, apical pore rather inconspicuous, shape in
face view elliptic to oblong, in profile more or less bean-shaped, in KOH sordid
cinnamon to pale cocoa-color but soon with a dark-chocolate cast, in Melzer’s
tawny, wall about 0.3p, thick."

Here are Alan’s micrographs of the spores from obs 119603 which is likely the same species pictured here.
image 292092

And now the illustration of P. uliginicola spores from Smith’s book.

I ask everyone, can we please stop ignoring Smith’s descriptions when it doesn’t match our finds?

By: Byrain
2014-01-11 12:44:15 -05 (-0500)

You already know that there is another species besides P. uliginicola that looks like this in CA and there are no confirmed P. uliginicola in CA yet. Why do you keep ignoring this?

maybe from Santa Cruz?
By: Debbie Viess (amanitarita)
2014-01-11 11:53:30 -05 (-0500)

We collected this one at Pt. Reyes last weekend, among a half dozen other sp. of Psaths.

Created: 2014-01-11 04:23:00 -05 (-0500)
Last modified: 2015-05-17 22:44:52 -05 (-0500)
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