Mah., 1887.1 
NORTH AMERICAN AGARICS. 
4. Agaricus phalloides, Flies. Hym. Eur., p. 18. Peck, 33d N. 
Y. Rep., p. 42. Stevenson, B. F., Vol. I, p. 4. Cooke, Illust. pi. 2. 
Pileus campanulate-expauded, obtuse, viscid ; the margin orbicular, 
even; stipe stuffed, hollow at the apex, tapering from the base, nearly 
smooth; the vol va free half way; lamellae rounded, ventricose ; spores 
globose, .008—.009 millim. in diameter. In woods everywhere; common. 
Pileus 3—o inches in diameter, stipe 5—8 inches long. The color varies 
from nearly white through yellowish and gray to brown. It is an 
extremely poisonous plant and has a strong and disagreeable odor, 
especially as it begins to decay. A. vermis, Bull., is an early or spring 
form of this species ; it does not appear to be different by any striking 
characteristic. 
b. Volvo, eircumscissile, the upper part remaining as scales or 
icarts upon the pileus. 
5. Agaricus mappa, Fries. Hym. Eur., p. 19. Stevenson, B. F., 
Vol. I, p. 4. Cooke, Illust. pi. 4. 
Pileus convex, then plane, dry, commonly scaly ; the margin even ; 
stipe stuffed, then hollow, globose-bulbous; the volva eircumscissile; 
lamellae attached to the stipe ; spores globose, .007—.008 millim. in diam¬ 
eter. In open woods. Vermont, Frost; Carolina, Curtis; Minnesota, 
Johnson; Ohio. Pileus 2—3 inches in diameter, the stipe 3—4 inches 
long. A plant with a strong odor and poisonous qualities; commonly 
white, more nearly straw-color or citron. Distinguished by its large, 
globose bulb, with a mere rim around its summit. 
0. Agaricus iikcutitus. Fries. Hym. Eur., p. 19. Fries refers for 
a figure to Berkeley’s Outlines, pi. 3, fig. 3. but the species is not admit¬ 
ted by either Cooke or Stevenson. 
Pileus convex, then explanate, dry, often scaly; the margin nearly 
even; stipe stuffed, then hollow, tapering, silky; volva eircumscissile, 
the margin closely oppressed and sheathing,becoming obliterated; annulus 
distant, white; lamellae striate, decurrent. In pine woods: common. 
Carolina, Curtis. Pileus about four inches in diameter, the stipe six 
inches in length The color is brownish or livid-purplish. It seems to 
closely resemble A. pantlievinus , differing from it chiefly in its pileus 
being dry with an even margin. 
7. Agaricus Ravenelii, B. & C. Centuries of N. A. Fungi, No. 
51. This species appears to belong here. 
“Pileus convex, areolate-warty, the warts pyramidal ; stipe short, 
bulbous; volva thick, warty, somewhat lobed; annulus deflexed. In 
woods. June. South Carolina, H. W. Ravenel. Pileus four inches 
across, broken up into distinct areas, each of which is raised into an 
acute, rigid, pyramidal wart; stipe three inches high, one inch or more 
in thickness at the base, furnished with a thick, warty volva and a 
deflexed ring. A very fine species, allied to A. strobiliformis, Vitt.” 
B. Volva wholly adnate, eircumscissile, the base marginate and 
persistent, the upper part broken up and distributed as scales and warts 
upon the pileus. 
c. Pileus with the margin striate. 
