102 TWENTY-THIRD REPORT ON THE STATE CABINET. 
A small form occurs with the pileus nearly white, scarcely 
half an inch in diameter, and the cuticle not cracking. 
105. AGARICUS CAMPANULATUS JL. 
Pileus oval campanulate or obtusely conical, sometimes 
umbonate, smooth, somewhat shining, brownish, with a pecn- 
liar gray or lead-colored tint, sometimes becoming reddish 
tinted, the margin often scolloped or fringed with the appen- 
diculate veil; lamelle not broad, attached, becoming grayish- 
black; stipe long, slender, hollow, reddish, pruinose and 
slightly striate at the top, at length dusted with the spores. 
Height 4’—6’, breadth of pileus 6’—12”. 
On horse dung and rich soil. June and July. Common. 
In very wet weather the cuticle of the pileus sometimes 
cracks into scales or areas. 
Subgenus — Psathyrella. 
Veil not interwoven; pileus membranaceous, margin not 
reaching beyond the gills. — Berk. Outd. 
The species in this subgenus are more fragile than those in 
the preceding, the pileus thinner, often hygrophanous and stri- 
atulate, and the gills extend to its margin. 
SYNOPSIS OF THE SPECIES. 
PHSUS ty PLONNANGUS, SIOQUINS... cer. cick osc visi oscelsiteisie'se.cieie e.cioios ioe lots eee eee a. 
B. PIleUs COMICAL = .02.6 5 cate t Siense:s obi e aw sie 2 eee aR tefe cla ele nsie esis s c)ee lle eee 106. 
aq eileusiobtusely. campanulate < <= .t.. setein 5. ciene oan ie ercrcim sie «tele iro 107. 
Pileus sulcate-striate, not hyerophanous. .- ~~... 25. 4+ -c+es6s + «<0 5 seesse eee 108. 
106. AGARICUS GRACILIS /7. 
Pileus submembranaceous, conical, smooth, hygrophanous, 
watery-brown and striatulate when moist, yellowish or cream- 
colored when dry ; lamellze broad, not close, attached, becom- 
ing grayish-black ; stipe slender, straight, smooth, hollow, 
whitish. 
Height 4’— 6’, breadth of pileus 9’-12”. 
Rich grassy ground. Knowersville. September. 
The straight tall stem and regular conical pileus make this 
si beautiful species. The margin of the pileus first begins to 
ecay. 
107. AGARICUS ATOMATUS #7. 
Pileus membranaceous, subcampanulate, obtuse, smooth 
hygrophanous, brownish, tinged with pink or ochre and 
striatulate when moist, paler and with sparkling atoms when 
