REPORT OF THE BOTANIST. 93 
emarginate, white; stem stout, smooth, hollow, white ; 
spores subglobose, -.00018"—.0002’ in diameter. 
Plant 3’-4’ high, pileus 2’-3’ broad, stem 4’—6” thick. 
Ground in woods. Forestburgh, Sullivan county. Sept. 
When cut, the flesh has a farinaceous odor. The plant 
sometimes grows in tufts. In size and general character it 
is related to A. virescens. 
AGARICUS ROSELLUS AY. 
Hemlock woods. Forestburgh. Sept. 
AGARICUS (MYCENA) ATROALBOIDES 7. Sp. 
Pileus campanulate, obtuse or subumbonate, striate on 
the margin ; at first blackish-brown with a slight pruinosity, 
then fading to cinereous on the margin; lamelle close, narrow 
ascending, uncinate with a decurrrent tooth, white or cine- 
reous ; stem long, smooth, equal, colored like the pileus, 
villous at the base ; spores with a slight apiculus at one end, 
elliptical, .0003’ long. 
Plant.3’-4’ high, pileus 4-6” broad, stem .5”—1” thick. 
Wet places among mossesin woods. Forestburgh. Sept. 
The stem in the younger plants is darker toward the top. 
The lamelle are not free, aud the stem is not thickened at 
the base as in A. atroalbus. 
There is a slender variety in which the umbo becomes 
whitish in drying. 
AGARICUS (MYCENA) CONSTANS 7. sp. 
Pileus submembranaceous, campanulate -or convex, 
striate, pale-cinereous ; lamelle close, ascending, uncinate, 
white ; stem slender, equal, smooth, colored like the pileus, 
with hairy filaments at the base; odor alkaline. 
Plant about 2’ high, pileus 1’’-3” broad. 
Among mosses in woods. Forestburgh. Sept. 
In general appearance it bears some resemblance to small 
forms of A. vulgaris, but it is easily separated by its dry 
stem and its odor of hartshorn which is very distinct when 
the plant is first gathered. 
AGARICUS (MYCENA) DELECTABILIS 72. Sp. 
White; pileus thin, conical, subacute, striate; lamelle 
close, arcuate-decurrent ; stem slender, equal, smooth, with 
hairy filaments at the base; odor alkaline. 
