Report of the Botanist. 79 



"^SS. Agaricus radicatus RelJi. 



Pileiis thin, convex, then expanded, siibumbonate, often 

 radiately wrinkled, smooth, glutinous when moist, grayish 

 brown ; lamellae 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. 



84, Agaricus dryophilus Bull. 



Pileus fleshy, not thick, convex or expanded, rarely slightly 

 depressed, smooth ; lamellae narrow, crowded, wdiite, 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. June-November. 



*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 ; lamellae 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 caespitose, l'-2' high, pileus 6"- 15" broad. 



On stumps, trunks of trees, etc. 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. iielutipes 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 n. sp. 



Pileus thin, hemispherical or convex, smooth, whitish, often 

 tinged with yellow, the disk darker ; lamellae narrow, crowded, 

 reaching the stem, rounded at the inner extremity, almost 

 free ; stipe slender, white, smooth, hollow ; j)lant caespitose. 



Height 2'- 3', breadth of pileus 6"- 12", stipe 1" thick. 



