No. 104.] 39 
villosity at the base; spores subglobose or broadly elliptical, .C0016 
to .0002 in. long. 
Pileus 4 to 8 lines broad, stem 1.5 to 3 in. long, about 1 line thick. 
Among moss and fallen leaves in open places in woods. Adiron- 
dack mountains. Aug. 
The species should be referred to the section Tephrophane, 
Agaricus (Collybia) esculentoides, 7. sp. 
Pileus hemispherical or convex, umbilicate, glabrous, pale yellow- 
ish-brown ; lameilze moderately close, broad, thick, whitish ; stem 
slender, hollow, somewhat tenacious, colored like the pileus; spores 
elliptical, .00025 to .0003 in. long, .0002 in. broad. 
Pileus 8 to 12 lines broad, stem 1.5 to 2 in. long, 1 to 1.5 lines 
thick. 
Sandy soil. West Albany. Karner and Delmar. Sept. 
This species resembles A. eseulentus in size and color, but it differs 
in its stem which is not radicated, and in its pileus which soon be- 
comes umbilicate or more or less centrally depressed. It has a bitter 
taste, a character attributed to <A. esculentus also. Our plant 
occurred in autumn, but A. esculentus is said to grow in early 
spring. 
Agaricus (Mycena) amabillissimus, 7. sp. 
Pileus submembranous, campanulate, obtuse or acute, glabrous, 
obscurely striatulate when moist, bright-red or scarlet; lamelle 
ascending, whitish or tinged with red; stem slender, pallid, subpel- 
lucid, with a white villosity at the base. 
Pilens 3 to 6 lines broad and high; stem about 1 in. long. 
Among mosses and ferns in marshes. Karner. Sept. 
This species is closely related to A. acicwla of which it may 
possibly be a large form, but inasmuch as it differs not only in size 
but also in its longer and more conical or campanulate pileus and in 
its differently colored lamellze it seems best to keep it distinct. 
Agaricus spathulatus, Pers. 
Ground. Sandlake. June. 
Agaricus (Pleurotus) atropellitus. 
Decaying wood and bark both of frondose and acerose trees. 
Maryland. Helderberg and Adirondack mountains. June to Oct. 
Agaricus (Clitopilus) pascuensis, 7. sp. 
Pileus fleshy, compact, centrally depressed, glabrous, pale-alutac- 
eous, the cuticle of the disk cracking into minute areas; lamelle 
rather narrow, close, decurrent, whitish, becoming flesh-colored ; stem 
short, equal or tapering downward, solid, glabrous, colored like the 
pileus; spores subelliptical, pale-incarnate, .0003 to .0004 in. long, 
-0002 to .00025 broad. 
