Observation 150948: Russula Pers.

When: 2013-10-20

Collection location: Wharton State Forest, Burlington Co., New Jersey, USA [Click for map]

Who: I. G. Safonov (IGSafonov)

No specimen available

A group of 5 closely spaced specimens growing in the middle of a sandy trail under conifers (no oaks nearby).

The cap of the largest fruitbody was not wider than 5 cm.
The cap color is darkest in the center; the edges are almost pink.
The cap margins were striate-tuberculate.
The cuticle peeled ~1/2.
The gills were cream-colored, forking at the stipe and occasionally midway.
The stipe was flushed with pale red (pink).
The stipe turned grayish after handling.
The flesh tasted mild and a bit oily.
The flesh slowly turned faintly brownish to grayish.
No odor was noted.
The spore print appeared to be in the A-B range.
The spores were globose to subglobose with isolated, but catenulate, blunt-nosed warts; some spores had a few fine-lined connectors, not forming even a partial reticulum.

Taking these facts together, it keyed out to the following code in Kibby & Fatto:
A = cap is red / purplish red / blood / pink / salmon
I = peels 1/3-3/4 cap radius
L = colored stem
N/O = cap diameter of 1-4 (O) or 5-10 cm (N)
P = spore deposit appeared paler than C (cream)
T = mild taste
(V) = flesh discolors when cut or bruised

Needless to say, none of the suspects in the book matched the observed characteristics. Many species were rejected because of the spore shapes and wart ornamentation, others because of the habitat (growing only in deciduous woods); some had wrong color of the cap, etc..
This one wasn’t supposed to be very difficult, just challenging, but alas… I think I am beginning to agree with Michael Kuo: http://www.mushroomexpert.com/russula.html. :-)


Mounted in 5% Lugol and seen at 1000x; focus on the surface
Mounted in 5% Lugol and seen at 1000x; focus on the edge

Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2013-11-03 03:28:34 CET (+0100)
Last modified: 2013-11-03 03:30:46 CET (+0100)
Viewed: 36 times, last viewed: 2017-06-17 20:03:43 CEST (+0200)
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