Observation 193297: Rickenella fibula (Bull.) Raithelh.
When: 2014-12-12
No herbarium specimen

Notes: The caps on these were 3 mm across. I crushed one and noticed no particular smell. The shape was convex with depressions along each gill line ( or maybe it’s an optical thing with shadow from the gill) The top of the cap was a little darker, but again that could be just a shadow from the gills coming together.

The stems were long, about 1.5 inches and rooted in the with the moss. I could not tell if it was attached to the moss or the dirt. The stems were very thin, ~ 0.2-0.3 mm.

The gills came down the stem a little (decurrent). The gills were lighter than the cap but I couldn’t be sure of the color and the orange from the cap made them appear orange. The gills were well spaced.

I did a squash mount of a piece of the cap. I was able to photograph the long, cylindric cystidia that are distinctive of this species. In the microscopic image, 10 divisions = 56 µm.

I also saw several spores and was able to measure one, it was L=4 µm W=2 µm. The others looked about the same size which is consistent with this species.



Proposed Names

84% (1)
Eye3 Eyes3
Used references: Mushroom Expert
Based on microscopic features: Spore size and long, cylindric cystidia on the gills.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2014-12-12 20:21:51 PST (-0800)
Last modified: 2014-12-12 20:22:16 PST (-0800)
Viewed: 12 times, last viewed: 2016-10-22 01:22:55 PDT (-0700)
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