190 Cincinnati Society of Natural History. 
fibrous, solid, rigid, pallescent, mealy with white flocci and white- 
villous at the base. Lamelle free, joined together behind, pale or 
yellowish changing to brownish, at length remote, distant, firm. 
In woods on oak trunks and branches and on the leaves, Pileus 
8-11 in. in diameter, stipe 2-3 in. long. Stipe stuffed with crisp 
fibres, externally covered with subreticulate flocci. Pileus alutaceous 
or reddish. 
2. “UM. PERoNATUS, Bolt.--Acrid. Pileus coriaceo-membranaceous, 
convexo- plane, obtuse, opaque, at length lacunose; the margin striate. 
Stipe fibrous-stuffed, villous-corticate, yellow then reddish; the base 
peronate-strigose. Lamellez attached-seceding, rather thin, somewhat 
crowded, pallid then reddish. 
{n woods, among the leaves, -Pileus 1-24 in. broad, the stipe 2-3 
in. high, and 2 lines thick. Stipe finally hollow and compressed; the 
villous cuticle seceding when rubbed; the tomentum at the base lute- 
ous or white. The younger pileus pale reddish, when fully grown 
alutaceous. 
b. Stipe naked at the base. 
3. M. orREADES, Bolt.—Somewhat fragrant. Pileus fleshy, tough, 
convex then plane, somewhat umbonate, glabrous, expallent. Stipe 
solid, equal; the cuticle villous-interwoven, pallid; the base naked. 
Lamelle free, broad, distant, white-pallid. 
Growing in circles and series throughout the summer. Pileus 4-14 
in. broad, the stipe 2-3 in. long. The pileus when wet reddish or tawny, 
and the margin striate, when dry cream color. This is the Champig- 
non of Europe. It is not so abundant in this country, but may be 
observed growing gregariously in rich grassy lands throughout the 
summer. It withers up in the dry weather, reviving and flourishing 
with the rains. It is famous for the rich flavor it imparts to soups and 
gravies. When dried it may be kept for years without losing any of 
its aroma or goodness. 
4. M. pxtancus, Fr.—Mild. Pileus fleshy-tough, plano-depressed, 
obtuse, even, expallent. Stipe hollow, soon compressed; the cuticle 
white-villous; the base somewhat tapering, naked. Lamelle seceding- 
free, distant, Jinear, darker. 
In woods, rare. Pileus about 1 in. broad, the stipe 2-3in. long. The 
pileus somewhat repand, becoming reddish; stipe tough, twisted, 
compressed above, especially when thickened, pallid. Lamelle 
brownish. 
