CRYPTOGAMIA. FUNGI. Agaricus. 
269 
Gills firm, seldom inosculating. Linn. Tileus always villose, and marked 
with concentric circles. Gills irregular, variously branched, but not 
forming lacunae as in Ag. quercinus. Bulliard 394 belongs to this species, 
and probably Schaeff. 57. It has been confounded with Ag. quercinus, by 
supposing it to be that species in its young state. Mr. Woodward. Lobes 
elliptical, tiled, from one to two inches over, chesnut brown, in shades 
with concentric wavy circles, very velvety to touch, of a woody sub¬ 
stance. Gills shallow, whitish, thickish, rigid, not emitting seeds when 
lying upon paper. In its young state it is gelatinous like a Boletus. Mr. 
Stackhouse. This species has been involved in much confusion, chiefly 
arising from its different appearance at different ages. Mr. Stackhouse 
sent me a young plant in its gelatinous state, which accorded, as he 
observed, with FI. Dan. 776. 1 ; the pileus being white and the gills a 
rich deep saffron colour. Bulliard 346, the lower figures, seems the same 
plant when it has just attained its firm texture; the colour of the gills 
darker and more of a purple cast. The other figures represent the plant 
in its older states, and of very different sizes, the colour of the gills being 
then a reddish brown, and the pileus somewhat paler but with wavy cir¬ 
cular streaks of a darker hue. The figures in Bulliard 394 are very 
exact representations of the specimens now before me. It sometimes 
grows to the size of one’s hand, enlarging by proliferous offsets from the 
edges, each offset having its own proper central point to which its gills 
are directed; but in this case the gills in the centre of the aggregate 
plant become extremely convoluted and irregularly branched. 
(Birch Agaric. Ag. betulinus. Bolt. FI. Dan. Huds. Hook. Purt. E.) 
Ray Syn. p. 24. n. 19. Trunks and stumps of trees, not uncommon. 
Var. 2. Pileus green. 
Bolt. 158. 
Probably only old specimens of the preceding, the green colour being oc¬ 
casioned by some other yet undetermined parasitic vegetable. 
(4g*- coriaceus. Bolt. Pers. E.) On old pales. Jan. 
Ag. ai/neus. (Linn.) Gills brown buff, in pairs: pileus gently con¬ 
vex, semi-circular, velvety, brown grey (or whitish. E.) 
Ag. acaulis , lamellis bifidis, pulverulentis. Linn. Ray Syn. p. 25. n. 24. 
( Grev. Scot. Crypt. 61— Sowerby 183. E.)— Schceff. 246— Bull. 346, the 
upper figures on the right hand — Weig. Obs. 2. 6— Battar. 38. C. D .— 
Buxb. v. 7. 1. 
Plant sessile, fixed by the edge of the pileus, woody, varying in the shades 
of its colours. Gills strong, but the surface downy. (Gills double, and 
fringed with hairs. Grev. E.) Pileus velvety to the touch from half to 
two inches over. 
(Alder Agaric. E.) Ag. alneus. Schaeff. Bull. ( Schizophyllum commune. 
Fries. Grev. E.) On decaying trunks of trees, particularly on the alder. 
At Aldenham, Salop. Mr. Stackhouse. Winter and Spring. 
Ag. querci'nus. (Linn.) Gills brown, waved, irregularly anasto¬ 
mosing : pileus brown, marked with concentric circles of various 
hues, semi-circular, flattish, soft and clothy. 
Ag. acaulis , lamellis labyrinthiformibus. Linn. 
Bull. 352— (Sowerby 181. E.)— Bolt. 73—Schceff'. 57—Battar. 38. A. B.— 
Vaill. t. I. f. 1.2, in its young stated—Buxb. v. 4. 1. 
