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Observation 369383: Mycena (Pers.) Roussel

When: 2019-06-15

Collection location: Sweet Valley, Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Growing at the mossy base of a rotting Scotch pine stump.
Squeezed out a tiny bi of liquid, but it wasn’t red.
Gills with slightly pigmented edges along the marginal 30-40% of the length.
Odor indistinct.
Cap margins without prominent “flaps”.
Cheilocystidia numerous, variable in shape. Some with uniformly thickened midsection and variably long apical projection with pointed tip. Some seen projecting from the gill edge as cylinders capped by a conical/acute tip that appears to be ornamented. Some with a more general fusoid ventricose shape.
Spores 10-12(12.5) x 5.5-7, ellipsoid.


In situ; low ambient light.

Proposed Names

58% (1)
Recognized by sight
58% (1)
Recognized by sight
Based on microscopic features: Large spores; lengths slightly exceeding 12 microns.

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= Observer’s choice
= Current consensus


Add Comment
Wondering if I’m seeing cystidia with echinate apices?
By: Dave W (Dave W)
2019-06-16 21:19:08 -05 (-0500)

8th photo down.