130 AGARICINI. 



Russula. at length becoming pale, and occasionally wholly white, thinly 

 fleshy, soon convexo-plane or piano -depressed, viscous when 

 moist, even or when old obsoletely striate at the margin j flesh 

 white. Stem 4 cent. (i}4 in.) long, 6-8 mm. (3-4 lin.) 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. 



In woods. Uncommon. July-Oct. 



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

 Name — luteus, yellow. Fr. Motiogr. ii. p. 203. Hym. Eur. p. 454. Berk. 

 Out. p. 214. C. Hbk. n. 638. S. Mycol. Scot. n. 611. Ag. Huds. 



40. R. nauseosa Fr. — Pileus variable in colour, typically 

 purplish at the disc, then livid, but becoming pale and often 

 whitish, laxly fleshy, thin, at first piano-gibbous, then depressed, 

 viscid in wet weather, silicate and somewhat tubercular at the 

 somewhat membranaceous margin; flesh soft, white. Stem 

 short, about 2.5 cent. (1 in.) long, 8 mm. (4 lin.) thick, spongy- 

 stuffed, slightly striate, white. Gills adnexed, ventricose, some- 

 what distant, here and there with a few shorter ones intermixed, 

 light yellow then dingy ochraceous. 



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

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

 the gills. 



In woods, chiefly pine. Coed Coch, &c. Oct. 



Name — nauseosus, nauseous. Fr. Monogr. ii. p. 204. Hym. Eur. p. 454. 

 B. dr 3 Br. n. 1283. Ag. Schceff. t. 16. /. 4. 



41. R. vitellina Fr. — Pileus 2.5 cent. (1 in.) broad, wiicolorous, 

 light yellow then wholly pallid, somewhat membranaceous, at 

 length luberculoso-striate, somewhat dry, disc very small, slightly 

 fleshy. Stem thin, scarcely exceeding 2.5 cent. (1 in.) long, 

 4 mm. (2 lin.) thick, equal. Gills separating-free, equal, distant, 

 rather thick, connected by veins, saffron-yellow. 



Pretty, very fragile, strong-smelling, mild. 



In fir and mixed woods. Uncommon. Aug.-Sept. 



Name— vitellus, yolk of egg. Egg-yellow. Fr. Hym. Eur. p. 454. Berk. 

 Out. p. 215. C. Hbk. n. 639. S. Mycol. Scot. n. 612. Ag. Pers. — Batsch 

 f. 72. 



42. R. chamseleontina Fr.— Pileus 2.5-5 cent - (1-2 in.) broad, 

 thinly fleshy, soon flattened, sometimes oblique with a thin, 



