82 'Wisconsin Academy of Sciences, Arts, and Letters. 
R. lutea Fr. 
Pilens: conical, convex or depressed, smooth, viscid when moist, 
pale or bright yellow, surface sometimes puberulent or 
floccose. Margin even or later striate. 3-8 cm.; flesh white ; 
taste mild. 
Gills: adnate to free, interveined, crowded; rounded anteriorly; 
equal, white then yellowish. 
Stem: tapers up, smooth, white, fleshy; 3-5 cm. long; 5-8 cm. 
thick. July, August, September. 
Spores: cream, ellipsoidal, echinulate. 8x10/*. 
Characters f Pileus : 
on which j Stem: 
identification j Gills: 
is based. [ Taste: 
pale or bright yellow, small size, 
short. 
crowded, yellowish, 
mild. 
Characters ( Pileus: retaining yellow color, 
of dried < Gills: yellowish or salmon, 
specimens. ( Stem: retaining its shape, stramineus. 
Habitat. On ground in woods. 
Locality. Lake Waubesa, Blue Mounds, Madison. 
Edibility. Edible and of delicate flavor. (Mcl.) 
(a) R. ochrophylla Pk. var. albipes Pk. 
Pileus: convex then flattened and depressed, slightly viscid 
when moist, smooth at first, then broken up into patches; 
margin at first incurved not striate, blackish or brownish 
olive. 7-12 cm.; flesh white, reddish when bruised. 
Gills: adnexed, rounded near stem, heterophyllous, thick, sub- 
distant, white, reddish where broken. 
Stem: 4-7 cm. long; 21/2-3 cm. thick; cylindrical, dirty white, 
then blackish, solid. July. 
Spores: 10x11/*, 11x13/*, ellipsoidal, coarsely echinulate. 
Characters 
on which 
identification 
is made. 
f Pileus: fleshy, blackish, margin even. 
! Gills: thick, subdistant, white, red 
| bruised. 
I Stem: thick, cylindrical, blackish. 
where 
