CRYPTOGAMIA. FUNGI. Agaricus, Stem none, 
Bull. 352-Bolt. 73-Schaff. 57-Battar. 38. A. B.-Vaill. to 
1. f. 1. 2, in its young state.—Buxb. v. 4.1. 
Grits very much branched, and anastomosing, thick, forming 
oblong, angular, and nearly circular cavities, especially 
towards the edge. 
Pitevs woody, nearly semi-circular, or of no regular shape, 
marked with circular tiled ridges as well as with diger. 
ent shades of colour, soft to the touch like buff leather or 
. fine cork, 1 to 5 inches over or more. 
STEM none. 
Mr. Bolton, who has accurately attended to the economy of 
this plant, observes that in its first stage of growth the gills are 
uppermost, they are then distinct, and branched, their sides 
united by minute lateral projections. In its second stage the 
pileus is in part detached from the substance on which it grew, 
the detached part rises up to an horizontal position, increasing 
in size, while the other part remains fixed serving as a support 
toit. As it grows older, the lateral projections of the gills in- 
crease in size, and filling * the interstices between the gills 
give them the appearance of oblong pores. Mr. Bulliard in 
plate 442 has given us several varieties of this very singular 
plant, and Scheffer 231 is one of monstrous or unusual growth. 
Mr. Woodward observes that the union of the gills forming la- 
cunz, leaves it doubtful whether it should be placed with the 
Agarics or the Boleti. Mr. Stackhouse says that the pileus may 
be said to consist only of fructification, as it cannot be separated 
from the old wood without taking with it the part it adheres 
to: he also agrees with Mr, Bulliard that it sometimes appears 
so much like a Boletus as to occasion a doubt to which genus it . 
should be referred. He further remarks, that in some of the 
thick, and to appearance solid specimens, the pileus is not 
thicker than‘a shilling, that the gill is a thick leathery sub- 
stance, little resembling the gill of an Agaric, and that it is the 
link which connects the Agarics with the Boleti. Ray Syx. 
25.ne21. 
Ag. quercinus, Scheff. Ag. quercinus. Bolt. Common on 
old pales, stumps, and decayed trees. 
Var. 2. Pileus green, soft. clothy. 
B olt. 73 . d. 
Gii1s brown, waved, often connected, in no regular order. 
Pirzeus marked with concentric circles of various hues, from 
green to brown; 1 to 7 inchesover, Flesh woody, 
thin, white. \ E : 
It is possible that the green coat may be a species of Bys- 
sus, but this idea did not occur whilst the plant was fresh. 
On old timber. Nov, 1790, 
301 
