126 AGARICIN1. 



Russula. In woods and open ground. Common. July-Dec. 



Spores shining white, Fr. ; sphaeroid, echinulate, 8-10 mk. K. ; 7 mk. 

 W.G.S. Stem longitudinally rugulose. M.J.B. Easily distinguished by the 

 flesh remaining red under the cuticle when peeled off. Poisonous. Said to 

 act as its name implies as an emetic ; certainly dangerous. Name — emetica, 

 a vomit. Fr. Monogr. ii. p. 197. Hym. Eur. p. 448. Sv. ail. Sv. t. 21. 

 Berk. Out. p. 212. C. Hbk. n. 629. S. Mycol. Scot. 11. 602. Ag. Harz. 

 t. 63. Burl. t. 14./ 4. Lenzf. 15. 



30. R. pectinata Fr.— Pileus 7.5 cent. (3 in.) broad, at first 

 viscous, toast-brown, then dry, becoming pale, tan, with the disc 

 always darker, fleshy, rigid, convex then flattened and depressed 

 or concavo-infundibuliform ; margin thin, ftectinato-sulcate, here 

 and there irregularly shaped ; flesh white, light yellowish under 

 the pellicle, which is not easily separable. Stem curt, 5 cent. 

 (2 in.) long, 18 mm-2.5 cent. (^-1 in.) thick, rigid, spongy- 

 stuffed, longitudinally slightly striate, shining white, often atten- 

 uated at the base. Gills atte?uiato-free behind, broader towards 

 the margin, somewhat crowded, equal, simple, white. 



Odour weak, buf nauseous, approaching that of R. fastens. The gills are 

 narrower than those of neighbouring species, but dilated from the stem to the 

 margin, not exuding drops, and not changeable when touched. 



In mixed woods. Glamis, 1874. Aug. 



Name— jScc^w, a comb. From the furrows at the margin being like the 

 teeth of a comb. Fr. Monogr. ii. p. 197. Hym. E?/r. p. 449. B. & Br. n. 

 1564. S. Mycol. Scot. n. 603. Ag. Bull. t. 509./. N. 



31. R. ochroleuca Fr. — Pileus yellow, becoming pale, fleshy, 

 flattened or depressed, polished, with an adnate pellicle, the 

 spreading margin becoming even. Stem spongy, stuffed, firm, 

 slightly reticnlato-wri?ikled, white becoming cinereous. Gills 

 rounded behind, united, broad, somewhat equal, white becoming 

 pale. 



Odour obsolete, but pleasant. The pileus is never reddish. It agrees 

 wholly with Id. emetica in structure and stature, as well as in the acrid taste ; 

 it differs however in the stem being slightly reticulato-wrinkled, white becom- 

 ing cinereous, in the adnate pellicle of the pileus, in the margin remaining for 

 a long time eveti (remotely striate, but not tubercular, only when old), and 

 in the gills being rounded behind and becoming pale. The colour of the 

 pileus is constant. The gills remain free and do not exude drops. 



In woods, chiefly fir. Frequent. Aug.-Nov. 



Spores papillose, 7 mk. W.G.S. Name— u X p6<;, pale yellow ; Aev>e6s, white. 

 From the yellow pileus and white stem and gills. Fr. Hym. Eur. p. 449. 

 Monogr. ii. p. 197. Berk. Out. p. 212. C. Hbk. n. 630. S. Mycol. Scot, 

 n. 604. Ag. Pers. — Krombh. t. 64./ 7-9. Buxb. C. v. /. 45./ 2. 



32. R. fragilis Fr.— Pileus 2.5-4 cent. {\-\ l / 2 in.) broad, rarely 



