64 TWENTY-FOURTH REPORT ON THE STATE MUSEUM. 
AGaricus pyxipatus Fr. 
Ground in pastures. Greig. September. 
AGARICUS ULMARIUS 7. 
Elm trees. Trenton Falls. September. 
I have what appears to be a form of this species, with the pileus 
destitute of spots and the lamelle deeply emarginate. It grows 
in large tufts from the roots of maple trees. 
AGARICUS PORRIGENS /7, 
Rotten wood in woods. Common in the North woods. Sep- 
tember, October. 
Agaricus (PLUTEUS) ADMIRABILIS 7. sp. 
Pileus rather thin, convex, broadly umbonate, glabrous, rugose- 
reticulated, hygrophanous, obscurely striatulate on the margin 
when moist, bright yellow; lamellee close, broad, remote, dull yel- 
lowish, then flesh colored; stem slender, smooth, hollow, equal or 
slightly thickened at the base, yellow, with a white mycelium; 
spores subglobose, zy'yq' long. 
Plant 1.52’ high, pileus 6"-10" broad, stem scarcely 1" thick. 
Old logs in woods. Greig. September. 
Near A. chrysophlebius from which it is separated by the umbo- 
nate, hygrophanous, uniformly yellow pileus, differently colored, 
lamelle and stem not enlarged above. 
AGARICUS SERICELLUS /7. 
Ground in woods. Catskill mountains. July. 
Agaricus (EnrotomA) GRAYANUS 2. Sp. 
Pileus fleshy, convex, frequently wavy or irregular, hygropha- 
nous, dull watery yellow when moist, smooth, shining and nearly 
white when dry; lamelle plane, close, flesh colored; stem equal, 
firm, solid, white ; spores subglobose, irregular ;;'5,’ long. 
Plant gregarious, 2'-3' high, pileus 1.5’-2' broad, stem 3-5’ thick. 
Ground in old roads. Sandlake. August. 
Dedicated to Prof. A. Gray, in view of his eminent position as 
a botanical writer. 
Agaricus (ENTOLOMA) CUSPIDATUS 7. sp. 
Pileus thin, conical or subeampanulate, smooth, shining, bearing 
an elongated papilla or cusp at the apex, the margin often irregu- 
