224 
Mycologia 
Russula crustosa Peck 
Crusted Russula 
Plate 163. Figure 6. X i 
Pileus convex, becoming nearly plane or centrally depressed, 
5-12 cm. broad ; surface variable in color, stramineous, pale- 
ochraceous, brownish-ochraceous, greenish or greenish-yellow, 
rarely brownish-purple, usually dry, viscid when wet, with small, 
appressed, areolate scales, except on the smooth disk; margin 
striate when mature; context white, mild or slightly and tardily 
acrid ; lamellae white, some short, some forked, narrowed toward 
the stipe, moderately close; spores white, subglobose, 8-10 /a; stipe 
white, equal, stuffed or hollow, 3-6 cm. long, 1.2-2. 5 cm. thick. 
This easily recognized species occurs rather commonly in mid- 
summer in woods or wood borders from Connecticut west to 
Michigan and south to Alabama and Mississippi. The specimen 
figured was collected near Bronx Park in August, 1911, and the 
taste was perfectly mild and agreeable. It is, however, sometimes 
slightly acrid when raw, but of excellent flavor when cooked. 
Russula virescens, a closely related species, is also edible. 
Russula bifida (Bull.) Schrdt. 
Russula fiircata (Lam.) Fries 
Forked Russula 
•' Plate 163. Figure 7. X i 
Pileus convex, becoming plane or concave, gregarious, 6-1 1 cm. 
broad; surface flavovirens, olivaceous, or some other shade of 
green tinged with fulvous or black on the disk, smooth or at times 
roughened with fine marks presenting a tomentose appearance 
which is deceiving; margin even, inflexed, the pellicle separable 
on the margin only ; context white, mild in taste ; lamellae white, 
forking twice or sometimes three times, adnate to slightly decur- 
rent, rather broad, crowded to subdistant ; spores globose, echinu- 
late, hyaline, 7-9 ju- ; stipe white, tapering downward, solid, becom- 
ing spongy or hollow with age, smooth, 3-7 cm. long, 1-2 cm. 
thick. 
This large and attractive species occurs rather commonly in the 
edges of oak woods about New York City during July and August. 
