184 
CRYPTOGAMIA. FUNGI. Agaricus. 
Notwithstanding the difference in the composition of the gills I am inclined 
to believe that this and the two following are not specifically distinct. 
(Sordid Concave Agaric. E.) Under trees in Edgbaston Park. 
Aug. Sept. 
Ag. elephAnti'nus. (Bolt.) Gills yellowish white, fleshy, wide 
apart, four in a set: pileus brown yellow, changing to black, and 
cracking: stem white. 
Bolt. 28— Soiverhy 36— Battar. 9. A. 
GUIs fixed, yellowish white, very fleshy, wide asunder, four in a set. 
Pileus brown yellow, viscid, changing to almost black, and cracking like 
burnt clay ; semi-globular, but with irregular depressions. Flesh white. 
Stem solid, white, contracted at the bottom, two to three inches high, and 
two in diameter. 
(Elephant Agaric. Ag. adustus /3. Pers. Ag. elephantims. Bolt. So 
abundant in one part of Kensington Gardens, that when in the black 
state (during great part of the year,) a casual observer would think 
fires had been made where they grow. Sowerby. E.) Edgbaston Park, 
in various places, but always under oak or Spanish chesnut trees. 
13ih Aug. 1791. 
Ag, AURA f TUS. Gills yellow white, uniform, often splitting, connected 
by threads: pileus golden yellow, viscid, flat, the side turned 
down: stem white. 
Gills fixed, yellowish white, in one series only, often splitting, connected 
and strengthened by transverse threads or ligaments extending from one 
gill to another near the inner surface of the pileus. 
Pileus deep golden yellow, changing when old to dark blotches as if the 
effect of fire; viscid, flattish at the top, five inches over, about an inch 
of the border turned down nearly square with the flat top, and parallel 
to the sides of the stem. Flesh white. 
Stem solid, white, tapering upwards so as to be far thinner at the top, two 
inches high, one inch diameter. 
When unexpanded, the whole plant is entirely white, or yellowish. This 
species, though so large and remarkable, seems to have been hitherto 
overlooked. Probably the dark blotches upon the pileus may have 
caused it to be confounded with Ag. adustus, before mentioned, or with 
Ag. elephantinus. The difference of structure has satisfied me that it is 
not the former species. Major Vellejr very justly remarked to me, that 
the viscid Agarics are much disposed to show dark tints. This plant 
cannot be Ag. viscidus of Hudson, for he cites, though doubtfully, Vaill. 
62. n. 14, Avhich is a plant of no uncommon size or solidity. The gills 
too in his are yellow. 
Ag. quinquepartitus. Linn. 
(Golden Square-edged Agaric. E.) Under a large oak, near the second 
stew, Edgbaston Park. 21st Aug. 1791. 
*Ag. vir'idis. (Ray.) Gills white, fleshy, brittle, four in a set: pileus 
blue green: stem cylindrical, whitish. 
Bolt. 12— Sterb. 5. C<— Schoeff. 1. is Ag. cerugiuosus. 
Gills fixed, narrow. 
