Observation 81014: Parasola conopilus (Fr.) Örstadius & E. Larss.
When: 2011-10-29
Who: zaca
No herbarium specimen

Proposed Names

29% (1)
Recognized by sight
74% (3)
Eye3 Eyes3
Based on microscopic features: See attached photos.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks
By: Byrain
2012-11-24 17:48:42 PST (-0800)

Its cool to see how different your spore range is compared to the the Psathyrella atrospora I find here in CA (I have one observation of it up already, another with better pics to be uploaded soon). I looked for the P. circellatipes photos from mushroom expert and didn’t find them, do you have a link? There is a description in North American Species of Psathyrella, but it was described from France initially. Here is a link – http://quod.lib.umich.edu/...
My first impression is that P. conopilus is a better match.

Hi Byrain,
By: zaca
2012-11-24 16:11:33 PST (-0800)

I don’t know Psathyrella circellatipes and I didn’t consider it. From some photos of that species (e.g. in “mushroom expert”) and don’t consider it similar to P. conopilus, but I couldn’t find a description (maybe you can indicate a website where I can see it). I attach to this message my original measurements of the spores. Thanks for asking,
zaca
__
13.93 7.09
16.17 8.03
14.85 8.38
15.52 8.32
14.06 8.25
14.76 8.25
15.00 7.31
15.13 7.25
14.80 7.83
14.50 7.72
13.52 6.21
19.15 9.09
14.61 8.08
14.90 8.23
11.97 7.69
16.23 8.12
16.02 7.72
14.81 7.95
15.46 8.35
15.52 8.32
14.84 8.38
14.85 8.52
13.98 7.61
12.92 8.05
15.57 8.17
15.06 8.39
15.00 8.57
15.35 8.70
16.92 8.95
13.90 7.79
15.78 8.27
16.30 8.65
16.49 7.68
14.03 8.13
13.53 7.19
14.59 7.75
14.56 8.30
14.78 8.32
15.47 7.90
16.15 8.08

zaca
By: Byrain
2012-11-23 00:29:45 PST (-0800)

Can you describe the germ pore including the side view? Also a spore range would help and have you considered Psathyrella circellatipes? I’m not sure if there are any other choices in Europe. Cool observations w/e they are!

Very cool!
By: Alan Rockefeller (Alan Rockefeller)
2011-10-31 17:15:03 PDT (-0700)

Nice pileipellis pics. I still can’t believe they put this thing in Parasola. I wonder how many other Psathyrellas will go there.

Dear Alan,
By: zaca
2011-10-31 15:43:45 PDT (-0700)

Thank you for the hint. I made the microscopic analysis of the cuticle (see attached photo) and I conclude that:
- Pileipelis hymeniform;
- Setae orangish/reddish brown in NH4OH, ~aciculate, thick-walled, dimensions: 112-290(+) x 5-7.5 µ (width taken at midle point).
Therefore, I now much more confident on Parasola conopilus.

I don’t know
By: Alan Rockefeller (Alan Rockefeller)
2011-10-31 00:07:26 PDT (-0700)

What does the pileipellis look like?

Can this be …
By: zaca
2011-10-30 09:56:35 PDT (-0700)

Created: 2011-10-30 08:52:34 PDT (-0700)
Last modified: 2012-11-24 23:47:57 PST (-0800)
Viewed: 175 times, last viewed: 2016-09-12 02:31:10 PDT (-0700)
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