THALLOGENS. 9 FUNGALS, 
THE FUNGAL ALLIANCE (V. K., p. 29.) 
With the single exception of Ergot, these are excluded from the modern 
practice of medicine. Ergot itself is a mere disease of the ovary of 
grasses, caused by the attacks of a parasite of this alliance (see Oidium.) 
Fungals are, however, among the more useful friends of man as food, and 
among his most dangerous enemies as parasites, destroying the sources of 
his food. The following are the most common and important examples. 
Acaricus. Linneeus. 
Pileus bearing on one side vertical, unequal plates or gills, forming a lamel- 
late hymenium. Veil single. 
1. A. campestris Lin- 
neus. — (COMMON 
Musuroom.) Fig. 8. 
Pileus fleshy, dry, whit- 
ish, silky or scaly, . 
fragrant when 
broken, and not 
changing colour ; 
hymenium pink, 
free, becoming 
brown or blackish ; 
stipe solid, white, 
having a ring, 
Habitat. Pastures, dung- 
hills, 
Quality. Nutritious, fra- 
grant. 
Uses. As food, and as sauce 
(ketchup.) 
2. A. oreades Bolton.— 
(Farry-r1ve Musu- 
ROOM. Scotca 
Bonnets. Cuam- 
PIGNON.) Fig. 9. 
Pileus fleshy, tough, 
somewhat bossed, 
first pale-brown,and 
becoming whiter 
with age; hyme- 
nium whitish, with 
distinct gills; stipe 
solid, with no ring, 
round, whitish, with 
a skin separating 
into longitudinal 
fibres. 9 
Fig. 8.—Agaricus campestris, with its mycelium, orspawn; 9, Agaricus oreades in different states of ; - 
