RUSSULA. 



125 



colour often with a deeper yellowish tinge, disc darker, thinly fleshy, Russula. 

 convex then plane, polished, smooth, margin even, slightly striate 

 when old; pellicle closely adnate, thin; flesh firm, of the same 

 colour as the gilts. Stem 5 cent. (2 in.) long, 12 mm. {% in.) 

 thick, spongy-stuffed then hollow, fragile, equal, even, white then 

 straw-colour. Gills adnate, crowded, thin, narrow, obsoletely 

 connected by veins, intermixed with a few which are dimidiate 

 or bifid behind, straw-colour. 



Distinguished, very acrid, odour none. The gills exude watery drops in 

 damp weather. 



In beech woods. Common. Aug.-Nov. 



Easily distinguished from all others by its unchangeable persistent yellowish 

 straw-colour. The gills vary more distant. Name— felleus, full of gall. 

 Bitter. Fr. Monogr. ii. p. 196. Hym. Eur. p. 447. Icon. t. 173. f. 2. 

 B. &> Br. n. 1787. S. Mycol. Scot. Supp. Scot. Nat. 1881, p. 36. Paul. t. 

 76./. 4. 



28. R. Queletii Fr.— Pileus violaceous-black or fuscous, purple- 

 lilac at the margin which is slightly striate, compact, campanu- 

 lato- convex then plane, even, viscous; flesh firm, white, red- 

 purple under the pellicle. Stem spongy, mealy, violaceous- 

 purple. Gills attenuated, unequal or forked, exuding drops, white. 



Acrid. When the drops on the gills are dried, they leave azure-blue- 

 cinereous or pallid olivaceous spots. 



In woods. Common. Aug.-Nov. 



Pileus commonly about 7.5 cent. (3 in.) broad ; stem about same in length 

 and 2.5 cent. (1 in.) thick. Easily distinguished from R. integra by the 

 white gills. Name— after L. Quelet. Fr. in Qud. fur. p. 185. /. 24. /. 6. 

 Hym. 'Eur. p. 448. B. 6f Br. n. 1888. S. Mycol. Scot. n. 601. 



V. — Fragiles. 

 * Gills and spores white. 



29. R. emetica Fr. — Pileus 7.5-10 cent. (3-4 in.) broad, at 

 first rosy then blood-colour, tawny when old, sometimes becoming 

 yellow and at length (in moist places) white, at first campanulate 

 then flattened or depressed, polished, margin at length sulcate 

 and tubercular j flesh white, reddish under the separable pellicle. 

 Stem spongy-stuffed, stout, elastic when young, fragile when 

 older, even, white or reddish. Gills somewhatyra?, broad, some- 

 what distant, shining white. 



Handsome, regular, moderately firm, but fragile when full grown, taste very 

 acrid. The gills are never dusty. There is one form taller, with the pileus 

 campanulate then expanded, and the gills persistently free, another with the 

 pileus convex then expanded, and gills appearing adfixed. 



