468 RUSSTJLA 



VI. Pellicle of the pileus viscid, generally separable, possessing 

 numerous cystidia, red or purple. Margin rounded, generally striate. 

 Flesh fragile. Taste acrid. Gills generally equal, fragile, rounded 

 in front, free. Spores pure white, rarely cream- white in mass. 



1532. R. fragilis (Pers.) Fr. Cke. lUus. no. 1028, t. 1091. 



Fragilis, brittle. 



P. 3-5 cm., flesh colour, or red, changing colour, convex, often um- 

 bonate, then plane and depressed, very thin, fleshy only at the disc, 

 slightly viscid; margin very thin, tuberculoso-striate. St. 4-5 x 1 cm., 

 white, very fragile, pruinose, often slightly striate. Gills shining white, 

 slightly adnexed, very thin, crowded, ventricose, all equal. Flesh white. 

 Spores white, subglobose, 7-9 x 7-8/j,, echinulate, 1-guttulate. Cys- 

 tidia "sparse, with a short lanceolate point, 60-70 x 10-12/i" Rick. 

 Taste very acrid. Woods, and pastures. Aug. Dec. Common, (v.v.) 



var. nivea (Pers.) Cke. Cke. Illus. no. 1029, t. 1060, fig. B. 



Nivea, snow-white. 



Differs from the type in the white pileus. Woods. Aug. Nov. Not 

 uncommon, (v.v.) 



var. fallax (Schaeff.) Massee. Cke. Illus. no. 1023, t. 1059, as Russula 

 fallax Schaeff. Fallax, deceptive. 



Differs from the type in the olivaceous disc of the pileus. Woods. 

 Aug. Nov. Not uncommon, (v.v.) 



1533. R. violacea Quel. (= Agaricus fragilis violascens Seer.) Cke. 

 Illus. no. 1029, t. 1060, fig. A, as Russula fragilis Fr. var. 

 violacea Quel. Violacea, violet. 



P. 3-5 cm., bright violet, with a narrow whitish margin, often spotted 

 with yellow, green, or olive, convex, then plane and depressed, thin, 

 viscid, striate. St. 3-4 x -51 cm., white, fragile, striate, pruinose. 

 Gills white, adnate, crowded, thin. Flesh white. Spores pale straw in 

 the mass, globose, 8-9/Lt, verrucose. Smell "of laudanum" Quel. Taste 

 very acrid. Woods. Aug. Dec. Common, (v.v.) 



1534. R. emetica (Schaeff.) Fr. Cke. Illus. no. 1021, t. 1030. 



efierifcrj, provoking sickness. 



P. 4-10 cm., rosy, then blood colour, tawny when old, sometimes be- 

 coming yellow, and at length white, campanulate, then flattened, or 

 depressed, polished, sometimes rugulose ; margin at length tubercularly 

 sulcate. St. 3-7 x 1-1-5 cm., white, or reddish, rigid. Gills shining 

 white, free, or adnate, broad, subdistant. Flesh white, reddish under 

 the separable pellicle. Spores white, globose, 8/x,, echinulate, 1-guttu- 

 late. Cystidia "lanceolate, 60-75 x 12-18/n, not very abundant" 

 Eick. Taste very acrid. Beech woods, and under beeches. July 

 Dec. Common, (v.v.) 



