ALTAMAHA GRIT REGION OF GEORGIA 271 



dooly, worth, colquitt. Fl. all summer. Inland to 

 Americus and coastward to Folkston. 

 Virginia to Florida and Texas, in the coastal plain. 

 M. fluviatilis Aubl., 1. c, pi. 15. 



In our territory seen only in Heard's Pond, thomas, where it 

 is of course not native. (See remarks under Nympha 

 cBorbiculata, p. 237). Possibly only a form of the preceding 

 (see Bull. Torrey Club 30 : 234. 1903). 

 Commoner in Florida and the tropics. 

 LEMNACE^. 

 LEMNA L., Sp. PI. 970. 1753. 



L. sp. 



Montgomery: Floating in large sand-hill pond opposite 

 Lumber City, Sept. 10, 1903. 

 ARACEJE. 

 ARISJEMA Mart., Flora 14:459. 1839. 

 A. triphyllum (L.) Torr., Fl. N. Y. 2 : 239. 1843. (Indian Turnip), 

 berrien: Low woods just southwest of Tifton, Sept. 29, 1902. 

 Fl. spring. Scattered over the state, most common north- 

 ward. (Seen once within 5 feet of sea-level in Liberty 

 County.) 

 Nearly throughout temperate Eastern North America, but 



rather rare in the coastal plain. 

 PELTANDRA Raf., Jour. Phys. 89:103. 1819. 

 P. sagittifolia (Mx.) Morong, Mem. Torrey Club 5 : 102. 1894. 

 Figured in Meehan's Native Flowers and Ferns, 1: 1 21-124. 

 pi. 31. 1879. 

 Non-alluvial swamps; rare, coffee {1449), berrien. Fl. 

 May-July. Known otherwise in the state only from 

 Okefinokee Swamp. Said by Elliott (Sk. 2 1632) to have 

 once been abundant near Savannah. 

 Virginia (?) to central Florida and Mississippi, in the pine- 

 barren region. 



ORONTIUM L. Sp. PI. 324. 1753. 

 0. aquaticum L., 1. c. 



Sluggish but not muddy creeks and rivers, bulloch: Big 



