Amanita rubescens has remnants of a scaly envelope on the base of the stem and loose Warts on the cap, and the flesh where wounded becomes reddish.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
The material of the wall appears under three different forms: the inner layer is a thin membrane, uniform in structure, of a yellow-brown color, and semi-pellucid; the outer layer consists of large flat roundish or irregular vesicles, brown in color, filled with minute granules, and arranged in one or more strata; from these vesicles originate the tubules, which traverse the wall for a certain distance, and then enter the interior among the spores; the tubules are more or less compressed, simple or branched, and the surface is ornamented with Warts and ridges, which sometimes form irregular rings and reticulations.
"The Myxomycetes of the Miami Valley, Ohio"
A. P. Morgan
Capillitium not much expanded after dehiscence, ovoid-cylindric, erect, gray to mouse-color; the superficial threads densely and uniformly covered with minute Warts, 3-5 mic.
"The Myxomycetes of the Miami Valley, Ohio"
A. P. Morgan