Observation 142726: Russula amoenolens Romagn.
When: 2013-08-13
No herbarium specimen

Notes: A scattered family consisting of a few fruitbodies growing in grass under oaks.

Caps are 5-6 cm across. The cuticle is yellowish brown, shiny & viscid when wet, peeling 1/2. The margin is striate-tuberculate. Gills forking at the juncture with the stipe and occasionally a few millimeters outward. The odor is rather pleasant, fruity, reminiscent of a mixture of cooked apples, apricots and cooked shrimp. The taste is oily, first mild, but then acrid/hot in 10-15 sec.

The spore print en masse is closer to “B” than “C”. The spores are subglobose to broadly elliptical, with scattered warts and no connectors.

Neither R. amoenolens nor R. pectinatoides is a perfect match, but other possibilities in Kirby/Fatto are even more farfetched.

Images

357772
357773
357774
357775
The focus is on the spore plane, showing isolated warts projecting upwards. Mounted in 5% Lugol’s and magnified to 1000×.
357776
The focus is on the spore edge, showing the actual shape of the spores (subglobose). The apiculus appears to be roughly twice the length of a typical wart. Mounted in 5% Lugol’s and magnified to 1000×.

Proposed Names

28% (1)
Eye3 Eyes3
Used references: 1) Kibby/Fatto russula guide
2) MushroomExpert.com
Based on microscopic features: Broadly ellipsoid to subglobose spores with isolated warts and no connectors
28% (1)
Eye3
Used references: 1) Kibby/Fatto russula guide
2) MushroomExpert.com
Based on microscopic features: Broadly ellipsoid to subglobose spores with isolated warts and no connectors

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2013-08-14 22:28:51 PDT (-0700)
Last modified: 2013-08-14 22:31:31 PDT (-0700)
Viewed: 27 times, last viewed: 2016-10-25 00:25:59 PDT (-0700)
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