Observation 96572: Gymnopilus P. Karst.
When: 2012-06-06
35.6108° -83.7492°
No herbarium specimen
0 Sequences

Notes:
Possible Gymnopilus/Phaeomarasmius on dead Rhododendron. Cap diameter approx 3.0-3.5 cm.

Proposed Names

-21% (3)
Recognized by sight
23% (4)
Recognized by sight
52% (5)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Pholiota
By: Christine Braaten (wintersbefore)
2012-06-11 12:58:17 MDT (-0600)

The pileus appears wet because it had been raining, the surface should be described as dry. The specimens were in less than ideal condition when found so while I think the cystidia are cheilocystidia I had difficulty getting a good section. If it might be helpful, I can give it another go with the dried material. Thanks for the replies.

germpore in Pholiota spores
By: else
2012-06-11 10:49:01 MDT (-0600)

in the Pholiota species with light coloured spores, such as Ph. lenta, the germ pore can be quite invisible; it is more that you know that it should be there, than that it is visible.
For Ph. tuberculosa the descriptions give: no germ pore.
The shape of the spores is definitely Pholiota-like, and i don’t see any ornamentation on the spores.

Check for bitter taste
By: Alan Rockefeller (Alan Rockefeller)
2012-06-11 01:31:08 MDT (-0600)

If the spores really don’t have a germ pore, which seems likely, and the mushroom is wet I’d go with Gymnopilus.

The cystidia fits Gymnopilus. It would be helpful if you label your micrographs so I know which part of the mushroom I am looking at. When I photograph microscopic features I also take pictures of little bits of paper with the different microscopic features so when I upload them I know which parts of the mushroom the micrographs refer to.

Pholiota sp.
By: else
2012-06-10 20:43:53 MDT (-0600)

Pholiota tuberculosa has a dry pileus surface and lacks pleurocystidia, but the old basidia turn yellow in in KOH.
the shape of the cheilocystidia fits Ph. tuberculosa very well.

Spores
By: Christine Braaten (wintersbefore)
2012-06-06 21:13:33 MDT (-0600)

are yellow brown with no germ pore, I would expect spores this color to produce an orange spore print in mass. Pleuro- and Cheilocystidia abundant.

Created: 2012-06-06 20:15:21 MDT (-0600)
Last modified: 2015-08-03 11:41:51 MDT (-0600)
Viewed: 169 times, last viewed: 2017-10-11 13:10:10 MDT (-0600)
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