64 [ ASSEMBLY 
yellowish; stem compressed, sometimes channeled above, grayish- 
tomentose; spores elliptical, .0003 in. long, .00016 to .0002 broad ; 
odor and taste farinaceous. 
Ground, Sandlake. June. Edible. 
It grows singly or in tufts and is an inch or more in height. The 
margin is thin and sometimes striatulate and reflexed. ‘Toward the 
base the flesh is thicker than the breadth of the lamelle. The cuticle 
is tough and separable. The flesh is said by Gillet to be tender and 
delicate. Persoon describes the disk as spongy-squamulose, but in our 
specimens it is merely pubescent or tomentose. 
The species was united as a variety to P. petaloides by Fries, and is 
described by Gillet under that name, but it seems to me to be suffi- 
ciently distinct in its habit, habitat, color and spores to be regarded 
as a species. 
Pleurotus petaloides, F7. - 
“y" Petal-like Agaric. Petaloid Pleurotus. 
Agaricus petaloides, Bull. ; 
Pileus rather thin, eight to twenty lines broad, cwneate or spathu- 
late, tapering behind into the short compressed generally villose- 
tomentose stem, convex or nearly plane, glabrous or with a minute 
grayish pubescence or tomentum toward the base, sometimes striatulate 
on the margin when moist, whitish pale-alutaceous or brownish; 
lamelle crowded, linear, decurrent, whitish or yellowish; spores 
minute, globose, .00012 to .00016 in. broad. 
Decaying wood, Buffalo. G. W. Clinton. East Worcester, Karner, 
Catskill and Adirondack mountains. July and August. 
This is closely allied to the preceding species, with which it is united 
by most writers, but the striking difference in the size and shape of 
the spores indicates that they should be kept as distinct species. 
With us the petal-like Agaric is much more frequent in its occurrence 
than the spathulate Agaric. 
In shape and general appearance it closely resembles Crepidotus 
applanatus, from which it may be distinguished by its paler lamellae, 
smaller white spores and more colored pileus. 
Pileus at first resupinate, then rejlexed, sessile; lamelle radiating 
from an eccentric point. 
Pleurotus porrigens, 7’. 
Prolonged Agaric. Pine Pleurotus. 
Agaricus porrigens, Pers. 
Pilens rather thin, at first resupinate and suborbicular, then reflexed 
and prolonged, obovate subelliptical or ear-shaped, often longer than 
broad, one to three inches long, sessile, glabrous or villose-tomentose 
toward the base, pure white, the margin involute when young, some- 
times lobed in large specimens; lamellae narrow, linear, thin, crowded, 
sometimes slightly forked or anastomosing at the base, white; spores 
subglobose, .00025 to .0003 in. broad. 
Much decayed wood of pine and hemlock. Buffalo. G. W. Clin- 
ton. Karner, Catskill and Adirondack mountains. Autumn, 
The prolonged Agaric 1s a fine species, easily known by its pure 
