Russulaclaroflava – yellow swamp brittlegill Cap round, bright lemon-yellow to yellow, convex to flat, slightly sticky when wet. Gills start out white and slowly turn pale ocher. the stem is white and smooth. Occasionally gills and stipe turn gray-black when bruised or become gray with age.
Russulacrassotunicata A mostly white fungus often found growing on well rotted wood. Its cap may be somewhat creamy or yellowish and the gills and stipe often develop brownish stains. Its most distinctive characteristic is its thick, tough, rubbery cap cuticle that often can be completely peeled away from the cap flesh. The spores are white and the taster is bitter to acrid.
Russulacyanoxantha – Charcoal Burner Has been referred to as \'the Chameleon\' due to its large palette of colors including dull violets, purples, and gray-greens.
Russuladecolorans – copper brittlegill, graying russula Cap is copper-orange to dull orange to reddish brown. The gills are white to pale ocher. The stipe is white and smooth and all parts discolor gray to black when handled or cut.
Russulaemetica – emetic russula, the sickener Cap is scarlet to cherry-red and the top layer peels easily. Gills are white. Stipe is white as well and smooth to finely and irregularly ridged.
Russulafragilis – fragile brittlegill, fragile russula Small to small-medium species with very fragile flesh that becomes water-soaked very quickly. The cap color is generally a mix of watery purple, pink, and olivaceous green on a whitish to grayish background, and the cap edge is translucent-striate. The spores are white, the odor mild or pleasantly fruity, and the taste very acrid. It occurs singly or in small groups, often on or near well rotted wood. Broad
Russulalaurocerasi – almond-scented russula One of the larger russulas. It has a viscid yellowish brown cap with a grooved margin, whitish to brown-stained stipe, and strong, but generally pleasant, odor of almond extract or maraschino cherries. The spores are cream to pale yellow and the taste is very acrid. Western
Russulanigricans – blackening brittlegill, blackening russula a large, hard mushroom, with brownish or blackish brown cap and flesh that turns red when bruised; it blackens almost completely in age. The spores are white and the taste is mild to slightly acrid. Broad Widespread in Northern Hemisphere
Russulaoccidentalis – western russula It is a medium-sized or larger mushroom, with a variably colored cap---usually it is purplish with a yellow-green center, but it can appear in many shades of purplish, olive-green, and browns, usually in mixtures. The gills are cream to pale yellowish and the stipe is white and often turns grayish in age or when handled, sometimes with a reddish phase. The flesh is white and turns reddish to grayish to black when exposed. The spores are cream-colored. Broad, common