78 Wisconsin Academy of Sciences, Arts, and Letters. 
R. delica. 
Pileus: infundibuliform, smooth then pruinose, rough, scaly 
and cracked, white or tan. Margin incurved, entire. 7-12 
cm.; flesh, white changing to yellowish, thin, dry, slightly 
and slowly peppery. 
Gills: decurrent, distant, thin, narrow, heterophyllous, inter- 
veined, occasionally forked, white or cream. 
Stem: stout, cylindrical, smooth and solid, or pruinose. White, 
2.5-6 cm. long, 2- 2.5 cm. thick. July, August, in woods. 
Spores: echinulate, subglobose, 8x9 p, 10x12^, 7x8/x. 
Pileus: white, infundibuliform, roughened. 
Margin: entire, incurved. 
Stem: stout, short. 
Gills: decurrent, narrow. 
i© iixcu.ic. j rp as ^ e . slightly peppery. 
f Pileus: stramineus or brownish, wrinkled, indi- 
arac ers | f unc pi )Il iii‘ orm Margin, incurved. 
o cne 1 Gills: yellowish or isabellinus. 
specimens. ^ g^- em . shrunken, longitudinally wrinkled. 
Habitat. On ground in woods. 
Locality. Lake Waubesa, Blue Mounds, Madison. 
Edibility. Edible and of fair quality. (Mcl.) 
R. emetica Pr. 
Pileus: convex or explanate. Pink or rosy, tawny when old, 
sometimes white, smooth, margin striate. 4-10 cm. Flesh, 
reddish under separable pellicle. Taste very peppery. 
Gills: almost free, not crowded, heterophyllous, interveined, tri¬ 
angular, white. 
Stem: 4-8 cm. long, 1-2 cm. thick, smooth, white or rosy, 
spongy. Aug., Sept., Oct. 
Spores: 8x9 jx, ellipsoidal, echinulate white. 
Characters f Pileus: tawny or white color, when old. 
on which I Stem: reddish or white. 
identification ] Gills: always white. 
is made. [ Taste: peppery. 
Characters i 
on which [ 
identification i 
