Britton: Studies of West Indian plants 37 



Stemodia parviflora Ait. 



Rio Piedras, Porto Rico (Stevenson 2iy8). Hitherto un- 

 recorded from Porto Rico. 



Ditta myricoides Griseb. 



Sierra de Naguabo, Porto Rico (Shafer 3603). Hitherto un- 

 recorded from Porto Rico. 



SiDA Eggersii E. G. Baker 



Island of Culebra, Porto Rico, 1906 {Britton & Wheehr 178). 

 Hitherto Icnown only from Tortola, where Dr. Shafer made a 

 second collection of it in 1913. A tree, 6-8 m. high, very different 

 from typical species of Sida. 



Ossaea domingensis Cogn. 



Alto de la Bandera, Porto Rico {F. L. Stevens 8717). Hitherto 

 known only from Santo Domingo. 



Lescaillea equisetiformis Griseb. 



This monotypic genus of Compositae was rediscovered on the 

 southern slope of Cajalbana in the province of Pinar del Rio, 

 Cuba, by Brothers Leon and Charles on April 6, 1915. The 

 genus has hitherto been imperfectly known, as it was represented 

 in this country only by a fragment at the Gray Herbarium, 

 collected by Charles Wright in western Cuba. Lascaillea is a 

 woody vine related to Porophyllum. The leaves are reduced to 

 small scales, the plant resembling certain species of Ephedra 

 much more closely than it does any Eguisetum. 



