Studies in the Botany of the southeastern United States.-XI. 



By John K. Small. 



I. Noteworthy Species. 



Sagittaria FiLiFORMis J. G. Smith, Rep. Mo. Bot. Gard. 6: 46. 



//. 15. 1894. 

 Mr. A. H. Curtiss has sent me fine fruiting specimens of this 

 rare species, collected near Jacksonville, Florida. They are ap- 

 parently the first specimens found with mature achenes ; these are 

 of the same general outline as the immature achenes figured by 

 Mr Smith, but slightly broader. In the center of each face there 

 is an oblong swelling surrounded by a depression, while the edges 



