Murrill; Illustrations of Fungi 
95 
ish, rather broad ; reaching the stipe and forming slight decurrent 
lines upon it ; spores subglobose to ellipsoid, 9-10 X 7-8 yu. ; stipe 
subequal, white or pale-yellowish, stuffed or hollow, usually rough 
with concentric, margined scales adnate to the bulbous base, 8-25 
cm. long, 2-3 cm. thick; annulus superior, large, membranous, 
persistent, white; volva white or yellowish, usually entirely fragile, 
rarely slightly margining the bulb. 
This widely distributed and very dangerous species has several 
color forms, and it has often been confused with edible species. 
Its poisonous properties and the use of atropine as an antidote 
have been considered in previous papers. 
Venenarius flavorubescens (Atk.) iMurrill 
Amanita flavorubescens Atk. 
Velvet-stemmed Amanita 
Plate 87. Figures 4 and 7. X i 
Pileus convex to expanded, scattered or gregarious, sometimes 
subcespitose, 6-10 cm. broad ; surface flavous with a melleous tint 
to dark-brownish-melleous, usually darker at the center, adorned 
with yellow or brownish-yellow, floccose patches which may per- 
sist or partly disappear with age, margin faintly striate, usually 
paler ; context thin, yellowish ; lamellae free to adnexed, not 
crowded, oblong-elliptic in outline, white, much resembling those 
of V. rubens when dry ; spores globose to ellipsoid, smooth, hya- 
line, 8-10X5-8/4.; stipe subequal or tapering upward, usually 
somewhat enlarged below, but scarcely bulbous, fibrillose or floc- 
cose-mealy, at times conspicuously roughened, characteristically 
tomentose when dry, concolorous or paler above, reddish below, 
turning slowly to red at the base when bruised, 5-12 cm. long, 
5-12 mm. thick; annulus ample, membranous, persistent, flavous; 
volva flavous or nearly so, friable, the fragments remaining on 
the surface of the pileus and at the base of the stipe or disap- 
pearing according to weather conditions. 
The two figures show striking differences in color and form, 
but the species is a variable one. Figure 4 represents the dark 
form; figure 7 the normal yellow form with an unusually rough 
stipe. 
