Pe Sai ; 
DISCOPHYLLUM PELTATUM (p. 101). oa 
Fic. 1. Reproduction of a photograph of the type specimen illustrated by Professor Hall. i 
Fic. 2. Reproduction of a photograph of the second specimen mentioned by Professor Hall, which 
shows the concentric striae much more clearly than does fig. 1. The faintly outlined ring ; 
near the center is not shown in the figure. — 
= 
198 
