REPORT OF THE BOTANIST. 49 
AGARICUS (PHOLIOTA) DETERSIBILIS 2. Sp. 
Pileus hemispherical or convex, thin, densely coated with 
small erect pyramidal or spinulose scales, ochraceous-brown; 
lamell# broad, plane, close, reaching the stem, slightly 
attached, pallid then cinnamon-brown ; stem equal, stuffed 
or hollow, squamulose below the obsolete ring, colored like 
the pileus,-often curved ; spores unequally elliptical, .0003’— 
.00035’ long. 
Plant about 1’ high, pileus 6” broad, stem 1’ thick. 
Decaying trunks of deciduous trees in woods. Lake 
Pleasant. August. 
The small soft scales are rubbed off easily, whence the 
specific name. I suspect that under more favorable condi- 
tions the plant may grow considerably larger than the 
dimensions given. 
AGARICUS (HEBELOMA) COLVINI %. sp. 
Pileus fleshy, convex or expanded, sometimes gibbous 
or broadly umbonate, rarely centrally depressed, glabrous 
grayish or alutaceous inclining to pale ochre ; lamellee close, 
broad, emarginate or ‘rounded behind, whitish or pallid 
becoming brownish ; stem flexuous, silky-fibrillose, stuffed 
or hollow, solid toward the base, whitish ; spores subellip- 
tical, .0004’-.0005’ long. 
Plant 2’-4’ high, pileus 1’-3’ broad, stem 1’’-3” thick. 
Sand hills near West Albany. October. 
This interesting species is dedicated to Mr. V. Colvin, to 
whom is due the credit of its discovery. Its habitat is pecu- 
liar, being the clear drifting sand of the plains west of 
Albany. The mycelium binds the sand together in a mass 
which adheres to the base of the stem. A cricket was 
observed feeding upon the pileus of a small specimen. 
CoPRINUS SEYMOURI 2. Sp. : 
Ceespitose, fragile ; pileus thin, soon expanded, smooth 
or sprinkled with minute granular scales, dark-brown, the 
disk sometimes with a reddish tinge, strongly striate or 
subplicate, the thin margin soon splitting and revolute ; 
lamellee close, narrow, reaching the stem, brown then black; 
stem equal, hollow, smooth or slightly pulverulent, white ; 
spores broadly ovate, compressed, .00025’-.0003" long, .0002’— 
00025’ broad. 
Plant 3’-4’ high, pileus 8-12” broad, stem 1” thick. 
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