96 
Mycologia 
Venenarius Frostianus (Peck) Murrill 
Amanita Frostiana Peck 
Frost’s Amanita 
P late 87. Figure 5. X i 
Pileus thin, convex to expanded, plane or slightly umbonate, 
3-8 cm. broad ; surface viscid, adorned with floccose, yellow frag- 
ments of the volva, often becoming entirely glabrous, chrome- 
yellow to orange-yellow, slightly darker in the center, margin 
smooth or slightly striate; lamellae free, rounded at both ends, 
subdistant, white or yellowish ; spores globose or ovoid, smooth, 
hyaline, 6-10 long; stipe slightly tapering upward from the 
bulbous base, white or yellowish, smooth, flocculose, stuffed, 6-13 
cm. long, 0.4-1. 5 cm. thick; annulus membranous, delicate, easily 
torn away, pale-yellow to chrome-yellow ; volva yellowish, usually 
entirely friable, rarely slightly margining the bulb. 
A beautiful species resembling V. mnscarius, but smaller and 
more slender and not poisonous. 
Venenarius cothurnatus (Atk.) Murrill 
Amanita cothurnata Atk. 
Booted Amanita 
Plate 87. Figure 6. X i 
Pileus globose to convex, at length expanded, 3-7 cm. broad ; 
surface quite viscid when moist, decorated with small, scattered, 
soft, floccose warts, white or tinged with lemon-yellow, or with 
the center tawny-olive, even or finely striate on the margin ; con- 
text white, without odor ; lamellae rounded behind, crowded, plane, 
white; spores globose, smooth, hyaline, 7-9 ytt; stipe cylindric, 
bulbous, flocculose or floccose-scaly, white, hollow or rarely 
stuffed, 5-12 cm. long, 0.4-1 cm. thick; annulus white, thick, per- 
sistent, volva white, adnate to the large, ovoid bulb, circumscissile, 
breaking uniformly and leaving an abrupt ring at the top of 
the bulb. 
The annulus was very low in the specimen figured and the boot 
very short. The pileus was also less viscid and somewhat dif- 
ferent in color from plants found commonly farther south. 
New York Botanical Garden. 
