cyathus

The ladle (cyathus, Fig. 127) held about one-twelfth of a pint, or more probably was graduated by twelfths.

Some similar teeth occur on the segments of the anterior ramus of the fourth cirrus, but not on the pedicel, in A. cyathus.

Cyathus stercoreus varies considerably, however, as to shape and size of cups, according to habitat.

When old they become smoother, and are sometimes mistaken for Cyathus vernicosus.

This genus is distinguished from Cyathus, its nearest ally, by the peridial wall, consisting of two layers only.