REPORT OF THE BOTANIST. 79 
*33. AGARICUS RADICATUS Lelh. 
Pileus thin, convex, then expanded, subumbonate, often 
radiately wrinkled, smooth, glutinous when moist, grayish 
brown; lamellz white, subdistant, rather broad, emarginate, 
attached to the stipe ; stipe long, firm, smooth, stuffed, slightly 
tapering upward, subconcolorous, having a root-like pro- 
longation extending deep into the earth. 
Height 4’-8’, breadth of pileus 2’-3’, stipe 2-3”. 
Woods and open places. Common. June-August. Edible. 
384. AGARICUS DRYOPHILUS Bull. 
Pileus fleshy, not thick, convex or expanded, rarely slightly 
depressed, smooth; lamell# narrow, crowded, white, some- 
times pale yellow, rounded or emarginate at the inner ex- 
tremity, subfree ; stipe equal, slender, smooth, hollow, con- 
colorous, mostly mycelio-enlarged at the base. 
Height 1’-2’, breadth of pileus 1’-1.5’, stipe 1’’-2” thick. 
Very common in woods and pastures, growing among leaves 
and decaying vegetable matter. J ane: Noteniren 
*15. AGARICUS VELUTIPES Curt. 
Pileus fleshy, thin on the margin, convex, sometimes irregu- 
lar, smooth, very viscid, pale dull yellow with a brownish 
disk or bright reddish-yellow ; lamellee close, rounded behind, 
nearly or quite free, yellowish; stipe equal or slightly taper- 
ing upward, hollow or stuffed, generally velvety and brown, 
sometimes pale yellow and pruinose. 
Plant cespitose, 1’-2’ high, pileus 6’-15” broad. 
On stumps, trunks of trees; ete. April—October. 
This plant was first found by me growing on a stump 
which had been cut close to the ground. Its pale pileus 
with a brownish disk, yellowish hollow stem with its pubes- 
cence scarcely perceptible, looking like a slight pruinosity, 
were all so unlike the characters assigned to A. velutipes in 
the description, that I was disposed to regard our plant as 
distinct. Further observation, however, convinces me that it 
is a mere variety, but one so marked that I have thought it 
worthy of illustration. (Plate 5, figs. 12-17.) 
35. AGARICUS FAMILIA 7. sp. 
Pileus thin, hemispherical or convex, smooth, whitish, often 
tinged with yellow, the disk darker ; lamelle narrow, crowded, 
reaching the stem, rounded at the inner extremity, almost 
free ; stipe slender, white, smooth, hollow; plant czespitose. 
Height 2-3’, breadth of pileus 6’—12”, stipe 1” thick. 
