264 
CRYPTOGAMIA. FUNGI. Agaricus. 
Bull. 152—( Sowerby 97. E.)— Jacg.Fl. 288— Pet. Gaz. 95.8. 
Wholly white,, tender, brittle and pellucid; in figure nearly semi-circular, 
sometimes with three lobes. Dickson. 
Gills fixed, mostly uniform, splitting, white, changing to brownish yellow. 
Pileus white as milk, flat, thin, half an inch over. 
Stem , or more properly perhaps. Rooty a blackish knobby substance. 
Without a stem, attached by its side to decayed sticks, in hedges, Bucking¬ 
hamshire. Mr. Knapp : from whom I first received specimens in the 
year 1787. At first wholly white; in time the gills turn yellowish, and 
in a dry season the whole plant exsiccates and turns black before it decays. 
Mr. Woodward. Gills set extremely fine, unequal in length, pale brown, 
narrow. Pileus snow white, powdery, convex, when young flat, and the 
edge deflected with age; thin, tough. The whole springs from a kind of 
pedicle, and never exceeds the size of a sixpence. Mr. Stackhouse. 
(Pellucid Stemless Agaric. E.) Ag. niveus. Jacquin and Dickson; 
but that name had been given before to a well-established species. Ray 
Syn. p. 22. n. 8. Ag. sessilis. Bull. On decayed sticks, &c. under 
hedges, frequent. 
Ag. ostrea'tus. (Jacq.) Gills white, irregular, long ones often 
branched at the base : pileus brown, smooth, thin, and wrinkled 
at the edge. 
Curt. 216— Jacq. Austr. 104—( Soiverby 241, pileus too blue. E.) 
Gills fixed, whitish, of various lengths, the long ones often forked towards 
the base and anastomosing. 
Pileus brown, smooth, rather shining, thin and wrinkled at the edge, from 
one to eight inches broad, from two to ten inches long, or more. Flesh 
white, tough. 
Stem , or rather root, solid, tough: penetrating deep into the crack of the 
beech tree, on which it grew. 
Very much resembling the shape of an oyster, but hollowed underneath. 
It has a faint sickly smell. 
Mr. W oodward suspects that this in a more advanced age may be Ag. 
conchatus. 
(Oyster Agaric. Ag. ostreatus. Curt. Sowerby. Pers. Purt. E.) Near 
Ditchingham, Norfolk, on decayed ash. Mr. Woodward. In clusters of 
five or six or more on willow, or elm. Mr. Stackhouse. In a cleft in the 
bark of a large beech, near the root, Edgbaston park. Dec.—Jan. 
Var. 2. Proliferous. 
Gills pure white, unequal. Pileus dark olive colour, leathery, thin ; edge 
turned down. It rises from a sort of pedicle, from whence one, two, 
three, or more mis-shapen lobes proceed. From these lobes other little 
lobes come forth. Description and drawing from Mr. Stackhouse. 
Powick, near Worcester. 
Ag. glandulo'sus. Gills white, their sides studded with globular 
glands: pileus dark brown; stem lateral, white. 
Bull 426. 
Gills white, very decurrent, studded with globular glands, which, when 
dissected out and magnified, appear like prickly balls. 
Pileus rich dark brown, very large. Mr. Relhan measured one eighteen 
inches by fourteen. Flesh very thick, white. 
Stem lateral, very short, white. Bulliard. 
