Leucosporee 



R. lll'tea (Huds.) Fr. luteus, yellow. Pileus 1-2 in. broad, yel- Russtda. 

 low, at length becoming pale, and occasionally wholly white, thinly 

 fleshy, soon convexo-plane or piano-depressed, sticky when moist, even 

 or when old obsoletely striate at the margin. Flesh white. Stem ^ 

 in. long, 3-4 lines thick, stuffed then hollow, soft, fragile, equal, even, 

 white, never reddish. Gills somewhat free, connected by veins, crowded, 

 narrow, all equal, ochraceous-egg-yellow. 



Always small, very regular, taste mild. When young the pileus is 

 always of a beautiful yellow. Fries. 



Spores yellow, echinulate, 8/x, W.G.S.; globose, rough, 6-7/* C.B.P.; . 

 8-IOX7-8/* Massee. 



Allied to R. vitellina, but differs in having the margin of the cap 

 even, and but little odor. 



The plant I have so referred has the gills at first white and the stem 

 yellow like the pileus; it may be a new species. In beech woods, 

 Morgan; West Virginia, Pennsylvania, New Jersey, in mixed woods, 

 often under beeches, August to November, Mcllvaine. 



The plants I have found have white gills when young (few species 

 have not), but rapidly become yellow. The stem is usually white when 

 young, and sometimes remains so, but often becomes more or less 

 yellow. 



It is a pretty species. The flavor is not as strong as in some species, 

 but is delicate. 



R. nauseo'sa Fr. Pileus variable in color, typically purplish at the 

 disk, then livid, but becoming pale and often whitish, laxly fleshy, thin, 

 at first piano-gibbous, then depressed, viscid in wet weather, furrowed 

 and somewhat tubercular at the somewhat membranaceous margin. 

 Flesh soft, white. Stem short, about I in. long, 4 lines thick, spongy- 

 stuffed, slightly striate, white. Gills adnexed, ventricose, somewhat 

 distant, here and there with a few shorter ones intermixed, light yellow 

 then dingy ochraceous. 



The taste is mild, but also nauseous, as the odor often is. The habit 

 is that of R. nitida, of the same color of pileus, but differing in the color 

 of the gills. Fries. 



Cap about 2 in. across. Stem 1-2 in. long, %% in. thick. 



Spores dingy yellow, 8-9/4 diameter. Massee. 



North Carolina and Pennsylvania, Schweinitz; West Virginia, Penn- 



211 



