_ CRYPTOGAMIA. 972 
The Gills are always attached to the Pileus, and sometimes 
to that only, as at fig. (E.c.c.) They often shoulder 
up against the Stem, and are fixed to it, as at fig. (A. b.) 
pete seta they are not merely fixed to the Stem; but 
extended along it, downwards, as at (a) in the last men- 
tioned figure. This is what we shall call a decurrent 
Gill. e fixed and decurrent Gills are attached to the 
Stem only by their ends, which are next to the centre of the 
Pileus, not by their edges, as is sometimes the case in some 
of the Agarics whose Pilet or Caps are nearly cylindrical. 
_ In some of these the edges of the Gills are pressed close to 
the Stem, and even adhere to it more or less in the young 
state of the plant, but separate before it attains its full ex- 
pansion. This, therefore, is a very different kind of attach- 
ment to that which we mean to express by the terms fixed 
or decurrent. Ee 
Our secondary subdivisions of the Agarics, are founded 
oe been just now explained, and are ag 
Ows = ' 
1. Grits decurrent. 
STEM solid ; . Grits fixed. 
3. Gi1Ls loose. 
(4. Grits decurrent. 
STEM hollow ;4 5. Guts fixed. “3 
; 6. Grits loose. 
But the Gitrs containing the fructification of these 
plants, are of the utmost importance, and therefore demand 
more particular notice. They vary ve much in |} " 
for though they all extend to the edge of the Pileus, they 
do not, except in a few instances, reach to the Stem 5 
moreover they are sometimes forked or divided, and some- 
times connected or anastom one with another. 
- these circumstances are explained by the two circular figures 
at the bottom of plate XIX.—Thus, : 
3) Gills uniform. ‘These uniform Gills sometimes seem 
i" cokaeatcl together at the edge of the Pileus, as 
represented below (d.) 
