8 CIRCULAR 143, U. S. 
DEPARTMENT OF AGRICULTURE 
AMANITA CAESAREA. CAESAR’S MUSHROOM 
(Fig. 5) 
In this species the cap is hemispherical, smocth, and with a conspicuous 
striate margin. It is reddish or orange in color, later becoming yellow. The 
gills are free and yellow; the stem is yellow, cylindrical, only slightly enlarged 
FIGURE 5.—Amanita caesarea 
at the base, attenuated upward, scaly 
below the annulus, and smooth above; 
the ring is yellow, large, membranaceous, 
and hangs like a collar from the upper 
part of the stem: and the volva is saclike 
and conspicuous, white as contrasted with 
the yellow of the stem. 
This species is variously known as 
Caesar’s agaric, royal agaric, orange 
Amanita, etc. It has been highiy esteemed 
aS an article of diet since the time of the 
early Greeks. It is particularly abundant 
during rainy weather and may occur 
solitary. several together, or in definite 
rings. Although Amanita caesarea is 
edible, great caution should always be 
used in order not to confuse it with poison- 
ous Amanitas. 
AMANITA STROBILIFORMIS. FIR- CONE 
AMANITA 
(Fig. 6) 
In this species the cap is convex or 
nearly plane, white or sometimes slightly 
cinereous on the disk, and covered with 
large, angular, pyramidal warts; the mar- 
gin extends slightly beyond the gills and 
Sometimes bears fragments of the ring, 
which is large and torn; the gills are 
broad and white; the stem is thick and 
white, floccose scaly, and the bulb very 
large with concentric-marginate ridges 
and furrows and abruptly pointed below.- 
This species is to be found in woods 
in midsummer and early fall and occurs 
shlitary or two or three together. It is 
conspicuous because of its startling white 
color, the size of the cap, which varies 
from 4 to 10 inches, and the length of 
the stem, which ranges from 8 to 8 inches 
and terminates in a large bulb. This 
plant is not to be recognized as an edible 
species. 
AMANITOPSIS 
The genus Amanitopsis has white spores and a volvalike Amanita 
but differs from it in the absence of a veil or a ring. The volva is 
large and persistent and at first completely envelops the young plant. 
As the latter matures it bursts through the volva, particles of which 
are carried up on the pileus in the form of delicate scales or flakes, 
which, however. are soon brushed off, leaving the pileus smooth. 
