Denniston—Russulas of Madison and Vicinity. 
75 
Characters f Pileus: fuliginous, solid, margin even. 6-9 cm. 
on which j Gills: adnate, white to lead color, 
identification ] Stem: stout, short, white becoming blackish, 
is based. ^ Taste: mild. 
Pileus: wrinkled, umbrinus to fuliginous, 
cracking at margin. 
Gills: lead color to blackish. 
Stem: longitudinally wrinkled, umbrinus or 
blackish. 
Habitat. On ground under trees in grass. 
Characters | 
of dried -{ 
specimens. | 
Locality. Blue Mounds, Madison. 
Edibility. When well cooked it has a good flavor. (Mcl.) 
R. alutacea Fr. 
Pileus: convex, explanate or depressed, smooth, pink beneath 
separable pellicle, rosy, bright red, or purple red, olivaceous, 
often yellow at center or yellowish spots; margin striate, 
thin; 4-12 cm.; flesh, white, slightly peppery, gills more so 
than pileus. 
Gills: free, equal, broad (% -Ty 2 cm.), occasionally forked 
(every 3-10th forked) and heterophyllous, white then ochra- 
ceous, rounded anteriorly, not powdered by spores. Sub 
crowded, interveined. 
Stem: cylindrical or tapering downward, smooth, white, 
tinged rosy, brown where rubbed, fleshy, 6-10 cm. long, 1-2 
cm., thick, spongy. August, September, October. 
Spores: globose or ellipsoidal, ochraceous, echinulate. 7-7 u., 
7-9 u., 9-12 u. 
f Pileus: rosy red, often yellow at center. 
Characters j Stem: stramineus, retaining shape, sometimes 
on which J reddish. 
identification ] Gills: light ochraceous, retaining color when 
is based. | dried. 
^ Taste: more or less peppery. 
Characters | 
of dried -J 
specimens, j 
i 
Pileus: rosy or wine red, sometimes yellow at 
center. Thin, margin faintly striate. 
Gills: bright, ochraceous. 
Stem: usually not shrunken, straw colored, 
rarely brownish. 
