280 AGARICACE/E Russula 



Russula agrees with Lactarins in size and some other characters, 

 but differs in the absence of milk. 



Fig. 63. Section of Russula lepida Fr. 

 One-half natural size. 



The sclerotia and perfect plants of 248 sometimes grow from the 

 gills of 1306 and 1307. 



Sph&ronema vitreum frequently grows on species of Russula and 

 Lactarins. Species 1306 1367 



a. Compactcc. Pilcits fleshy, margin bent inwards, without striae, 



without a distinct viscid pellicle, colour only changing with 

 age and the state of the atmosphere. Stem solid, fleshy. 

 Flesh compact, firm. Gills unequal. 1306 1313 



b. Fnrcata. Pileus compact, firm, covered with a thin closely 



adnate pellicle, which at length disappears, margin abruptly 

 thin, at first inflexed, acute, even. Stem at first compact, 

 then spongy-soft within. Gills somewhat forked, with a 

 few shorter ones intermixed, commonly attenuate at both 

 ends, thin, and normally narrow. 1314 1324 



c. Rigida. Pilens without a viscid pellicle, dry, rigid, the cuticle 



breaking up into flocci or granules, margin straight, never 

 involute or striate. Stem solid, at first hard, then softer or 

 spongy. Flesh thick, compact, firm, ending short of the 

 margin of the pileus. Gills, a few dimidiate, others divided, 

 rigid, dilated in front, running out with a broad, rounded 

 front, whence the margin of the pileus becomes obtuse. 

 Handsome, somewhat rare. 1325 1334 



d. Hcterophyllce. Pileus fleshy, firm, with a thin, at first inflexed 



margin, then, except 1340, expanded and striate, covered 

 with a thin adnate pellicle. Stem solid, stout, spongy 

 within, sometimes becoming hollow. Gills consisting of 

 many shorter, mixed with longer ones, others furcate. 



13351346 



e. Fragiles. Pilens more or less fleshy, covered with a pellicle 



which is always continuous, and in wet weather viscid and 



