CRYPTOGAMIA. FUNGI. Agaricds. 
177 
Pilots thickly covered like the stem with mouse-coloured downy matter; 
thin, light, dry, flexible, one and a half inch over. 
Stem solid, hard, thick as a duck’s quill, four inches high. Curtain white, 
evanescent. Bolt. 
(Tufted Mouse-coloured Agaric. E.) Ag. plumosus. Bolt. In a steep 
wood near Halifax. Aug. 
Ag. gra'cilis. Gills pure white, strong, not crowded, eight in a set: 
pileus pure light brown, flat, thin, bossed: stem tall, slender 
brownish. 
Gills fixed, very white, rather distant, fleshy, regularly disposed, eight in a 
set. 
Pileus cool brown, shining with moisture but not viscid, thin, nearly flat, 
but a gentle rising in the centre and radiated round the boss, diameter 
three to four inches. 
Stem solid, smooth, satiny, white at the top and bottom, pale mouse in the 
middle, eight inches high, quarter of an inch diameter, gently tapering 
upwards, splitting. Flesh brown, white in the centre. 
Var. 1. Gills very much branched : stem entirely white. 
(Slender Umbonated Agaric. E.) Edgbaston, red rock plantation. 
Aug.—Sept. 1791. 
Ag. elas'ticus. Gills white, four in a set: pileus chesnut, semi-glo¬ 
bular : stem huffy white, tapering. 
Schoejf. 87. 4. 5— {stem too red and too much ribbed.) Bull. 516. 2. resem¬ 
bles it. The smaller figures have too much colour in the stems. 
Gills fixed, whitish, four in a set. 
Pileus chesnut colour^ semi-globular, uniform, clothy. 
Flesh white, moderately thick. 
Stem solid, buff, with a few small red brown blotches, smooth, one and a 
half to two inches high, half an inch diameter, tapering upwards from half 
an inch above the ground, and from the same part rapidly tapering 
downwards so as to end in a slender root; sometimes rather ribbed. 
This Agaric is very tough and strong, with a considerable share of elasti¬ 
city. Mr. Stackhouse observes that the edge of the pileus coops in like 
the button of a common mushroom, that the gills are numerous, stiffs 
and white, that it is often found not in clusters, and that in many in¬ 
stances it approaches to Ag. crassipes. The tendency to a ribbed stem 
in some of the specimens increases the affinity; but until Ag. crassipes 
shall be better known, especially in its younger and smaller forms, the 
difficulties will sooner be cleared up by keeping them apart. The want 
of a boss on the pileus, of cracks in its skin, of strongly marked ribs on 
the stem, and the tough elastic substance of the plant, prevent me at 
present from arranging it as a variety of the crassipes. 
Not Ag. elasticus. Bolt. 
(Elastic Agaric. E.) Ag. crassipes. Schaeff. Under oak trees in Edg¬ 
baston Park. 21st Aug. 1791. 
Var. 2. Gills brown white, shallow, four in a set: pileus brown, convex, 
satiny, stem white. 
Gills fixed very strongly to the stem, brownish white, very narrow, four in 
a set, the smaller series often laid under the edge of the pileus, which 
turns inwards over them. 
VOL. iv. 
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