135 
NORTH AMERICAN AGARICS. 
Genus Russula (russulus, reddish), Fr. Hym. Ear., p. 459. 
By Robert K. Macadam. 
Tart II. 
III. RIGIDiE. 
12. a R. LACTEA, (Pers.) Fr. Hym. Eur., p. 443; Stev., B. F., p. 118; 
Sacc. Syll., Vol. v., p. 459. Pileus 2 inches (5 centimeters) broad, at 
first milk-white , then tan-white , throughout compactly fleshy , campanulate 
then convex, often eccentric without a pellicle, always dry (at first 
even, then slightly cracked when dry), margin straight, thin, obtuse, 
even; flesh compact, white. Stem l£-2 inches (4-5 centimeters) long, 1 \ 
inches (4 centimeters) thick, solid, very compact, but at length spongy- 
soft within, equal, even, always white. Gills free, very broad, thick , 
distant, rigid, forked, white. 
“ Mild, the gills are at. length adnate, forked at the base and apex. 
Care must be taken not to confound it with other Russulce which have 
changed color and become white. In mixed woods. Uncommon. Au¬ 
gust. 
“Name lac, milk. Milk-white. (Fr. Monogr., ii. p. 190; B. & Br., 
1133; C. Hbk., n. 621; S. Mycol. Scot., u. 591; Ag., Pers. Krotnbh., t. 
61, f. 1-2; Barla, t. 15, f. 1-13; Paul., t. 74, f. 2.)”—Stevenson. 
Edible and of good flavor. North Carolina aud Pennsylvania, 
Schweinitz; North Carolina, Curtis; California, Harkness & Moore; 
Wisconsin, Bundy; Ohio, in beech woods, Morgan. 
13. “R. virescens, (Scliseff.) Fr. Hym. Eur., p. 443; Stev., B. F., 
p. 119; Sacc. Syll., Vol. v., p. 460. Pileus 2-4 inches (5-10 centime¬ 
ters) broad, green, compactly fleshy, globose then expanded, at length 
depressed, often unequal, always dry, not furnished with a pellicle, 
wherefore the flocculose cuticle is broken up into patches or warts, margin 
straight, obtuse, even ; flesh white, not very compact. Stem 1-2 inches 
(2.5-5 centimeters) long, 4 inch (12 millimeters) thick, solid, internally 
spongy, firm, somewhat rivulose , white. Gills free, somewhat crowded, 
sometimes equal, sometimes forked, with a few shorter ones intermixed, 
white. 
“ Edible. Taste mild. It varies in size and color of pileus, which 
is sometimes deep, sometimes pallid green, sometimes yellowish, then 
green. The gills are not so broad in front as those of neighboring spe¬ 
cies. It is very easily distinguished from all others except R . crustosa , 
by the green pileus being without a pellicle and innato-flocculose, then 
rivulose, and scaly in the form of patches. In woods. Frequent. 
July to September.—Stevenson. 
