|Major Groups > Gilled Mushrooms > Pale-Spored > Russula > Russula uncialis|
by Michael Kuo
Red species of Russula are confoundingly difficult to separate from one another, but Russula uncialis has enough distinguishing features to make it identifiable--perhaps even without microscopic analysis. To wit, these features are:
If you have matched all of these features, the odds are high that your mushroom is Russula uncialis; microscopic details (see below) will help confirm your identification.
Ecology: Mycorrhizal with hardwoods, especially oaks (but I have collected it in a lawn under shagbark hickory with no other trees nearby); growing alone or gregariously; often in grassy areas, and frequently found in lawns; summer and fall; eastern North America.
Cap: 2-6 cm; convex, becoming broadly convex to flat with a shallow depression; rather thin and fragile; sticky when wet and fresh, but soon dry; smooth or finely dusted; dull pinkish red to blood red or rose red; evenly colored, but often with a slightly darker center; the margin becoming lined at maturity; the skin peeling fairly easily, often more than halfway to the center.
Gills: Attached to the stem; close; a few forked near the stem; white; unchanging.
Stem: 1-5 cm long; up to 1 cm thick; more or less equal; smooth; white, often flushed with the cap color.
Flesh: White; unchanging on exposure.
Odor and Taste: Odor not distinctive; taste mild.
Spore Print: White.
Chemical Reactions: KOH on cap surface negative to yellowish or yellow; iron salts negative on stem surface.
Microscopic Features: Spores 7-9 x 5.5-7 µ; broadly elliptical; with warts projecting under 1 µ; connecting lines scattered and sparse, not forming reticula. Pileipellis a hyaline cutis with hyphal ends rounded to subacute or elongated-fusoid; pileocystidia absent.
This site contains no information about the edibility or toxicity of mushrooms.
Cite this page as:
Kuo, M. (2009, March). Russula uncialis. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/russula_uncialis.html