REPORT OF THE BOTANIST. 69 
edge, pallid, then brownish; stem equal, solid, silky-fibrillose, 
colored like the pileus ; spores subelliptical, 5;4,, long. 
Plant 2’ high, pileus 1’ broad, stem 1’-2" thick. Sandy soil 
about pine trees. Saratoga. October. 
Readily known by the thin mar gin extending beyond the lamelle. 
It has the taste and odor of radishes. 
Agaricus (HEBELOMA) MUTATUS 7. Sp. 
Pileus thin, firm, convex or broadly conical, gibbous or broadly 
umbonate, rough with squarrose fasciculate, floccose scales, which 
at length disappear except on the disk, dark brown; lamellee 
broad, close, rounded and very deeply emarginate behind, attached 
by the extreme upper part only, dark ferruginous brown, edge 
whitish ; stem slender, equal, solid, firm, floccose-scaly, often curved 
at the base, colored like the pileus; spores elliptical, 534,’ long. 
Plant 2'-3' high, pileus 6’-12" broad, stem 1" thick. Damp 
ground in woods. Catskill mountains. July. 
The changed appearance produced by the disuppeatante of the 
scales suggests the specific name. 
AGaricus (CREPIDOTUS) DORSALIS 2. sp. 
Pileus fleshy, sessile, dimidiate or subreniform, flat or slightly 
depressed behind, with a decurved slightly striate margin, slightly 
fibrillose-tomentose, distinctly tomentose at the point of attach- 
ment, reddish yellow; lamellz close, ventricose, rounded behind, 
subemarginate, converging to a whitish, villous, lateral space, pale 
ochraceous brown; spores globose, z'5y In diameter. 
Pileus 8"-15" broad. Old logs in woods. Greig. September. 
Allied to A. putrigena B. & C., but it is not imbricated, and 
differs in color, size of spores, etc. In general appearance it bears 
some resemblance to Panus dorsalis. 
Acaricus MoLLis Scheff. 
Old logs and rotten wood. Common. July, September. 
AGARICUS VARIABILIS Pers. 
Dead trunks of mountain maple, Acer spicatum. Indian Lake, 
Hamilton county. October. 
AGARICUS HAUSTELLARIS F7. 
On prostrate trunks of poplars. Thurman, Warren county. 
October.’ A small form. 
Agaricus (CrEpipotus) GREIGENSIS 7. sp. 
Pilens submembranaceous, convex, dimidiate, hygrophanous, 
grayish cinnamon color and striatulate when moist, silky-fibrillose 
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