JOURNAL OF MYCOLOGY. 
[Voii. Ill, No.3, 
32 
24. Agaricus strangulatus, Fries. Hym. Eur., p. 27 ; Peck, 33d 
N. Y. Rep., p. 48; Stevenson, B. F., Vol. I, p. 11 ; Cooke, Illust. pi. 13; 
Fries, leones Selects?, pi. 11. 
Pileus campanulate, then expanded, viscid, covered with broad, 
crowded scales, fragments of the circumscissile volva; the margin sili¬ 
cate ; stipe stuffed, then hollow, closely sheathed at the base by the volva, 
encircled below by a spurious annulus; lamellae free, white. In woods ; 
rare. New England, Frost; New York, Peck; Minnesota, Johnson; 
California, Harkness. Pileus 2—4 inches in diameter, stipe 4—0 inches 
long. The pileus is brownish in color and variegated with numerous 
persistent scales. Worthington Smith’s measurement of the. spores is 
.016 x .008 millim. Prof. Peck’s specimens had globose spores, .010 —.013 
millim. in diameter. Fries gives no measurement of the spores in his 
specimen. There is some difference in the form of the volva as repre¬ 
sented in the two figures of Fries and Cooke. 
25. Agaricus nivalis, Peck. 33d N. Y. Rep., p. 48. I think we 
must accept the judgment of Stevenson that A. nivalis , Grew, is merely 
a white A. vaginatus. There are figures of this species in our herbarium. 
Pileus ovate, then convex or plain, naked ; the thin margin striate ; 
stipe stuffed, nearly smooth, bulbous, the bulb ochreate by the circum¬ 
scissile, obtusely-margined volva ; lamellae free, white; spores globose, 
.008—.010 millim. in diameter. In open woods. Vermont, Morgan; New 
York, Peck. Pileus 2—3 inches in diameter, the stipe 4—6 inches long. 
The pileus is white, sometimes with yellow or ochraceous on the disk ; 
the volva sheaths the bulb of the stipe and presents an obtuse margin 
exactly as in A. pantherinus; the upper part or calvptra is evanescent, 
seldom leaving scales upon the pileus. 
26. Agaricus onustus, Howe. Torrey Bulletin, Vol; V, p. 42. 
There is a figure of this species in our herbarium. 
Pileus convex, then plane, covered with dark scales and warts ; the 
margin even ; stipe stuffed, fibrillose-mealy, tapering upward ; the base 
concentrically scaly, fusiform and rooting; lamelhe reaching the stipe, 
white; spores oblique, apiculate, .009 x .006 millim. In grassy places in 
open woods; rare. New York, Ilowe; Ohio, Morgan. Pileus3—5inches 
in diameter, the stipe 4—5 inches long. Both pileus and stipe, in my 
specimens, are of a uniform mouse-color, with the flesh within and the 
lamellae white ; the warts are darker colored ; the margin of the pileus is 
not at all striate ; a peculiar sticky, cobwebby, powdery mealiness invests 
the stipe ; the scales of the fusiform bulb are concentric and squarrose. 
G. Volva fiocculose and.evanescent. 
27. Agaricus farinosus, Schw. Syn. Car. 16; Peck. 33d N. Y. 
Rep., p. 49. 
Pileus nearly plane, thin, fiocculent, pulverulent; the margin sulcate; 
stipe stuffed or hollow, mealy, somewhat bulbous; volva fiocculent- 
pulverulent, evanescent; lamellae free, whitish ; spores ovoid or subglo- 
bose. .006—.008 millim. in length. In woods; not common. New York, 
