Observation 141425: Russula rugulosa Peck

Scattered in soil under spruce in spruce-fir forest along Flat Creek Trail, Heintooga
overlook, GSMNP
Pileus: 3-8 cm, 8A5-6, 9B6-7, 9C8 with some 4A4 spotting and white spotting, broadly
convex to applanate, depressed but not noticeably in center, viscid when wet, smooth,
waxy; margin even, striate tuberculate, crenate; context white, solid; smells like
grease/lumber/dust, taste mealy becoming acrid; SP C+/D
Lamellae: white to cream, adnate, no forking; guaiac +
Stipes: 4-8 cm x 8-20 mm, white, bulbous occasionally compressed, context white,
stuffed with chambers; guaiac +
+, FeSO4 bright pink
Spores: broadly ellipsoid to lacrymoid, (9.7-)9.1-8.4-7.8(-7.4) × (7.8-)7.4-6.9-6.4(-6.2) µm, Q= (1.34-)1.29-1.22-1.15, amyloid plage, some connectives and some anastomosing spines, ornamentation (1.1-)0.9-0.8-0.6 µm,
Gleoecystidia: abundant, (81-)69-59-49(-48) × (12.6-)12.3-10.7-9.2 µm, narrowly cylindrical to narrowly clavate, apex often mucronate to rostrate, filled with oily contents
Pileipellis: SV negative pseudocystidia, vermiculate-septate; subcutis ixoderm, ~100 µm

Proposed Names

55% (1)
Eye3 Eyes3
Used references: Kibby & Fatto key

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Claude Kaufholtz-Couture (Claude Kaufholtz-Couture)
2014-07-30 04:15:10 CST (+0800)


At the moment, I work a russule that I believe to be R. rugulosa.

I look forward to making the study of spores and suprapellis.

I obtain the following code of Kibby and Fatto : A I K N / Q S – ?


Created: 2013-07-31 07:09:12 CST (+0800)
Last modified: 2013-07-31 07:10:48 CST (+0800)
Viewed: 123 times, last viewed: 2017-11-30 00:35:30 CST (+0800)
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