74 TWENTY-THIRD KEPORT ON THE STATE CABINET. 
17. AGARICUS VARIEGATUS Scop. 
Pileus fleshy, convex, at length expanded or slightly de- 
pressed, variegated with a red squamulose tomentum; 
lamellz narrow, close, pale yellow or whitish; stipe equal, 
stuffed, tomentose like the pileus. 
Height 2’, breadth of pileus 2’, diameter of stipe 3’-6”. 
About the roots of old stumps. Albany and Sandlake. 
June. 
The flesh of the pileus is whitish, inclining to yellow. The 
color of the tomentum varies in intensity. It is usually 
_ paler, as well as less dense, on the stem than on the pileus. 
18. AGARICUS vaccINUS Pers. 
Pileus fleshy, rather thin, except the disk, at first ovate- 
convex, then subcampanulate or expanded, generally 
broadly umbonate, dull reddish-brown with innate blackish 
fibres or scales, generally rough squamose from the break- 
ing up of the cuticle; lamelle whitish, at length becoming 
spotted and margined with dull rufous, close or subdistant, 
slightly or deeply emarginate; stipe concolorous with the 
pileus, whitish and pruinose at the top, fibrous-scaly, equal 
or subventricose, stuffed or hollow. 
Height 2’-3’, breadth of pileus 2’-3’, diameter of stipe 
AG. 
Ground under balsam trees in pastures. Catskill Moun- 
tains. October. 
A very variable species, not agreeing rigidly with the 
description of A. vaccinus, but I am unwilling to found a 
new species on the slight differences exhibited by so variable 
a plant. Two principal forms are noticeable; one, with the 
pileus smooth, expanded, not umbonate, the margin smooth, 
marked at little intervals with slight, short, polished eleva- 
tions, and the lamelle close; the other, with the pileus con- 
vex-campanulate broadly umbonate, rimose-squamose, the 
margin when young slightly tomentose, and the lamelle 
subdistant, often wavy and marked with little transverse 
lines. The latter form is the more common one. The color 
inclines to cinnamon-brown. 
19. AGARICUS TERREUS Scheff. 
Pileus fleshy on the disk, elsewhere rather thin, convex, 
then expanded, with a short broad umbo, densely squamu- 
lose, dark or livid-brown, the floccose scales blackish, often 
bluish tinged ; lamella whitish, subdistant, thick, ventricose, 
deeply emarginate or subrounded at the inner extremity, 
with a slight decurrent tooth ; stipe equal or slightly tapering 
