TERMINOLOGY. 35 
7. Scaly, (squamosus),. when it 1s covered above 
with many imbricated scales of a different colour 
from its own, as in Agaricus muscarius. 
8. Squarrose, (squarrosus), when the scales stand 
up from the surface, fig. 4. 
9. Halved, (dimidiatus), when it forms only half 
the figure of a plate, and appears to have one side 
taken off; as in Hydnum auriscalpium. 
10. Stipitate, (stipitatus), when it is supported by 
a stalk, § 19. 
11. Sitting, (sessilis s..acaulis), when it is not sup- 
ported by a stalk. 
The pileus of, the fungi has likewise parts peculiar 
to it, which must be carsfully observed, such as the 
Umbo, Lamella, Porus, Aculeus s. Echinus and Papille. 
a. Lhe boss, (wmbo), is the centre of the pileus, 
which, is somewhat raised.. This umbo is 
eiten present, even in a concave pileus. 
B. The gills, Wamelle), are the thin foliaceaus 
membranes on the underside of the mush- 
room. The gills contain the capsules of the 
seed, and are peculiar to the genus Agaricus. 
fig: 225, ‘The Lamelle are 
a. Equal, (equales), when all the gills reach 
from the stalk, to the margin. “ 
b. Unequal, Gneguales s. interrupte), when 
some reach from the stalk to the rim, while 
others go only half way, either from the 
stalk or from the rim. 
This eee of the gills is distinguished into 
‘Two-rowed, (diseriales ), ae a long and 
short gill are alternate. 
D4 4, Three- 
