In young specimens there are stripes and bands of violaceous brown, and the shells are striate within the aperture.
Spores globose or somewhat irregular, very minutely warted, violaceous, 9–11 mic.
The papules are usually pea-sized, flattened, and of a dark red or violaceous color.
The nodules gradually enlarge, the skin becomes reddish, violaceous or livid in color.
At first ...