Observation 10310: Rhodocybe mundula (Lasch) Singer
When: 2008-08-14
Herbarium specimen reported

Notes: Not sure what these are, found under hardwoods. They were fairly large 8-10 cm in datameter. Rather thin, not fleshy. They look like Clitopilus prunulus, but they are too thin, and no pinkish tones in the gills. It looked like these were white spored. Not sure what they are really.

9/29/2008 – Getting back to these here -

Well it turns out that Rhodocybe has sections, and one of the splits is on the existence of cystidia or not, so I thought I would take a look at these again.

The first micro-shot is of the gill edge in KOH at 400×. The cystidia it claims should be yellow, so I wanted to use a colorless reagent. The gill edge here displays only basidia, and no cystidia.

The second micro-shot if of spores from the gill at 1000x in KOH. Here the spores are rather small, hyaline. For the most part it looks like the spores are smooth, but some look less than smooth, they are so small this perhaps is uncertain.

So, it looks like the spores could be Rhodocybe, to tell the truth, they look more like Clitocybe. I found only one other photo of this species spores, maybe, which was posted from Germany in a question about an id of this species (They should post those questions here…). In any case, it makes me wonder, with these spore so small, and it looks like they are mostly subglobose in any case, but I think that is the way they are supposed to look, like this is a kinda Rhodocybe/Clitocybe intergrade and for now people put it in Rhodocybe.

So, it looks like this is a pretty good id, I’d still like to see good descriptions of North American Rhodocybes, if there is such a thing…

Proposed Names

29% (1)
Eye3
Recognized by sight: Grey, thin, decurrent gills.
11% (2)
Recognized by sight: Maybe something close to Clitocybe dealbata.
57% (1)
Eye3 Eyes3
Recognized by sight: Similar to other photos of this, need to check spores here.
Used references: Mushroom Expert
http://www.mushroomexpert.com/rhodocybe_mundula.html

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2008-09-01 22:14:35 CEST (+0200)
Last modified: 2008-09-01 22:14:35 CEST (+0200)
Viewed: 162 times, last viewed: 2016-11-04 03:17:27 CET (+0100)