120 PLANTS OF RHODE ISLAND. 
PLEUROSIGMA, Smith. 
1. Balticum, Sm. Newport, S. A. Briggs. 
2. Nubecula, Sm. Newport, S. A. Briggs. 
3. elongatum, Sm. Newport, S. A. Briggs. 
4. strigosum, Sm. Newport, S. A. Briggs. 
5. Spenceri, Sm. Providence. 
6. acuminatum, Sm. Quidnessett. 
MASTOGLOIA, Thwaites. 
Smithii, Thwaites. Rocky Point, S. A. Briggs. 
AMPHIPRORA, Ebrb. 
ornata, Bail. Providence. 
DICTYOCHA, Ehbrb. 
aculeata, Ehrb. Newport, S. A. Briggs. 
DISCOPLEA, —. 
sinensis, —. Newport, S. A. Briggs. 
DORYPHORA, Kutz. 
amphiceros, Kutz. Newport, S. A. Briggs. 
