New York, _Peck_, 43d Rep. West Virginia, Pennsylvania, New Jersey. Common in woods, grassy, mossy places. July to frost. _McIlvaine._ Named from the furrows of the margin being like the teeth of a comb. Both the appearance and smell of this Russula will detect it. The peculiar comb-like furrows of its margin, viscid or varnished-looking cap, and strong but more spicy smell than cherry-bark are noticeable. It is edible, but so strong in flavor that a piece of one will spoil a dish if cooked with other kinds. =R. ochroleu´ca= Fr. _Gr_—pale yellow; _Gr_—white. =Pileus= _yellow, becoming pale_, fleshy, flattened or depressed, polished, with an adnate pellicle, the spreading margin _becoming even_. =Stem= spongy, stuffed, firm, _slightly reticulato-wrinkled, white, becoming cinereous_. =Gills= _rounded behind_, united, broad, _somewhat equal_, white becoming pale. Odor obsolete, but pleasant. The pileus is never reddish. It agrees wholly with R. emetica in structure and stature, as well as in the _acrid taste_; it differs however in the stem being slightly recticulato-wrinkled, white becoming cinereous, in the adnate pellicle of the pileus, in the margin remaining for a long time _even_ (remotely striate, but not tubercular, only when old), and in the gills being rounded behind and becoming pale. The color of the pileus is constant. The gills remain _free_ and do not exude drops. _Fries._ =Cap= 2–4 in. across. =Stem= 2–3 in. long, up to ¾ in. thick. =Spores= papillose, 7µ _W.G.S._, 8×9µ _Massee_. Frequent in woods. July to October. Not as common as R. emetica, yet frequently found, usually solitary, at times gregarious. It is quite peppery, but loses pepperiness in cooking. Myself and others have frequently eaten it. =R. ci´trina= Gillet—_citrina_, citron colored. =Mild.= =Pileus= 2–3 in. across, slightly fleshy at the disk, margin thin; convex then more or less expanded and slightly depressed, rather viscid when moist, smooth, slightly wrinkled at the margin when old, bright lemon-yellow, color usually uniform, sometimes paler at the margin, occasionally with a greenish tint, center of pileus at length becoming pale-ochraceous; pellicle separable. =Gills= slightly decurrent, broadest a short distance from the margin, and gradually becoming narrower towards the base, forked at the base and also sometimes near the middle, white, 1½ lines deep at broadest part. =Stem= 2–3 in. long, about 4 lines thick, equal or slightly narrowed at the base, slightly wrinkled, straight or very slightly waved, solid. =Spores= subglobose, echinulate, 8µ diameter. In woods. Known by the clear lemon-yellow or citron-colored pileus and the persistently white gills and stem. The taste is mild at first, but becomes slightly acrid if kept in the mouth for a short time. _Massee._