Observation 137186: Rhodocybe caelata (Fr.) Maire
When: 2013-06-06
No herbarium specimen

Notes: Found by Miko.

The first micro-shot is of the gill edge at 400x in KOH. The cheilocystidia are fusoid and wavy, more or less pointed, with rough surfaces, and yellow in the top half in the reagent.

The second micro-shot is of the gill face at 400x in KOH. Just adding this one to show off the pleurocystidia, and the cystidia in general show up better in this show. They are numerous, and pigmented.

The third micro-shot is of spore from the gill at 1000x in KOH. The spores are ellipsoid, and warted, somewhat angular in end view. Kinda of clearly Rhododcybe spores. Apr. spore size is 7.5 × 5 um.

Ok, this is not good material, it was found by Miko, he said under a log, so it didn’t grow well. It was just a curiosity at first, and hard to tell the spore color. Under the mounting scope you could tell the spore deposit on the stipe, as it is, and on the edges of gills where it is folded over, and it is a kinda grey-pink color. Prof. Desjardin didn’t let this go, and pushed to get an id, and he put in under the scope, and got it to Rhodocybe, and he looked up one source, and I looked up Funga Nordica, and we both got to R. caelata in the keys.

It seems that this species has been reported from California. But also suggested from Else, and Oluna up in Victoria, suggest another species R. aureicystidiata. Not sure this little guy is worth it, but these species are good to keep in mind while looking for similar stuff in California in the future.

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Add Comment
By: Douglas Smith (douglas)
2013-06-24 21:30:29 CEST (+0200)

Yeah, I agree, this one doesn’t look very much like R. caelata obs. from Europe. And this one is just not all that good in anyway. But it does show that there is some sort of Rhodocybe with yellow cystidia in California, and I should try and pay attention this next year to look for more.

No, no sequencing has been done here, and not sure that there should be. If there is a better collection found, then it might be interesting.

This obs.
By: Gerhard Koller (Gerhard)
2013-06-22 10:21:37 CEST (+0200)

and one from yesterday under the same name: I doubt it is R. caelata in original sense. I know this species from my vicinity where it is quite common in moss bolsters in Central Europe and also Northern and Western Europe. The colors of the two observations do not match the European finds IMHO. They are too pinkish or too greenish-violet respectively.
Did anyone make DNA on them?

goes to show
By: Danny Newman (myxomop)
2013-06-22 10:05:22 CEST (+0200)

that even in the driest of years, new and exciting things can be found.

how does R. aureicystidiata differ from R. caelata?

Created: 2013-06-21 21:08:21 CEST (+0200)
Last modified: 2013-06-21 21:24:47 CEST (+0200)
Viewed: 56 times, last viewed: 2016-10-26 11:47:35 CEST (+0200)
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