Mar., 1SS7.1 
NORTH AMERICAN AGARICS. 
lamellae ventricose, free, rounded behind; spores, .009 x .000 millim. In 
woods, especially of beech, everywhere. Pileus 4—5 inches in diameter; 
stipe 4—6 inches long. Pileus grayish br brownish, the warts always 
loose and seceding, leaving the surface peculiarly cavernous and rugose, 
papillate; the margin is at first even, but when fully developed it is 
plainly striate or even sulcate. 
d. Pileus with the margin even. 
13. Agaricus strobiliformts, Vitt. Fries. Hyin. Eur., p. 21; 
Peck, 33d N. Y. Rep., p. 46; Stevenson, B. F., Yol. I, p. 7, Cooke, Illst. 
pi. 8. 
Pileus convex, then expanded, pelliculose, the margin even; warts 
hard, angular, closely adnate ; flesh compact, white ; stipe solid, floccose- 
scaly, thickened and bulbous below, the bulb beneath the soil, acutely 
margined and with concentric furrows; lamellae rotundate-free ; spores 
elliptic, .013—.015 x .008 millim. Borders of woods, everywhere. Pileus 
6—10 inches broad, the stipe 6—8 inches in length ; pileus white or whit¬ 
ish, sometimes yellowish on the disk, the margin even and extending a 
little beyond the lamellae ; scales of the pileus large, wart-like, angular, 
white or brownish, at length falling away. The bulb of the stipe is very 
large, sometimes attaining a diameter of 24 inches and is somewhat 
pointed or conical below, but not distinctly rooting. 
14. Agaricus solitaries, Bull, Fries, Ilym. Eur., p. 22; Peck, 
33d N. Y. Rep., p. 45 ; Agaricus pdlypyramis , B. & C., Centuries of X. A. 
Fungi, No. 1. There is a figure of this species in our herbarium. 
Pileus convex, then applanate, pelliculose, the margin even ; warts 
angular, seceding ; stipe solid, equal, imbricate-scaly below ; bulb cam- 
panulate, rooting ; annulus lacerate ; lamellie attenuate-attached ; spores 
elliptic-oblong, .008—.012 x .006 millim. In thin woods and open places. 
From New York to Kentucky and southward. Pileus 3—6 inches broad, 
stipe 4—6 inches long, the root from a third to half the length. Pileus 
generally white, with the warts ochraceous or brownish. The annulus 
is soon lacerated and a part or most of it frequently adheres to the 
margin of the pileus and the edge of the lamella}. The lacerated annulus 
and deeply-rooting bulb are the distinguishing features of this species. 
C. The whole volva friable and broken up into scales and warts 
upon the surface of the pileus. 
e. Warts of the pileus Jloccose mealy. 
15. Agaricus rubescens, Pers. 
33d X. V. Rep., p. 44; Stevenson, B. F 
Fries, ilym. Eur., p. 23; Peck, 
. Yol. I. p. 8 ; Cooke, Illust. pi. 9. 
Pileus convexo-expanded, strewn with unequal mealy warts, the 
llesh becoming reddish ; stipe stuffed, conic-attenuate, scaly ; annulus 
entire; lamella} attenuate, reaching the stipe and decurrent in stria 1 
upon it; spores elliptic. .007—.609 x .006 millim. In damp woods ; com¬ 
mon. From New England to Ohio and southward. Pileus 3—5 inches 
in diameter, stipe 4—5 inches long. The color of the pileus is somewhat 
variable, being alutaceous, yellowish or brownish, with a reddish tinge; 
