234 Harper : Some plants from Georgia 



Aug. 25, 1903 (nos. 30, 63). Hammocks, Ft. Lauderdale, Nov, 

 19 or 25, 1903, Small & Carter (no. 1139). 



Mississippi: Cat Island, Aug. 28, 1900, Lloyd & Tracy (no. 



3 6 4\ 



It would have been appropriate to make the specimen distrib- 

 uted by Engelmann the type, but as it apparently did not come 

 from a natural habitat, I will designate my own instead. 



POLYGONELLA GRACILIS var. ? 



On the sand-hills of Seventeen Mile Creek in Coffee County I 

 collected in September, 1903, some specimens of a curious Poly- 

 gonella (no. 2016) with linear acute leaves 5 to 8 cm. long, but 

 otherwise indistinguishable from P. gracilis (Nutt) Meisn., which 

 normally has cuneate-obovate leaves 2 to 4 cm. long. The typi- 

 cal form was not observed in the vicinity, and I have never even 

 seen it in the same county. Whether my plant should be called 

 a new species, variety or form cannot be determined without 

 further study, so I will leave it unnamed for the present. 



Nymphaea fluviatilis sp. nov. 



Rootstocks horizontal, about 3 cm. in diameter, the leaf- scars 

 rather remote : leaves of two kinds, submersed and floating, both 

 kinds glabrous throughout or essentially so ; floating leaves with 

 blades 12-25 cm - l° n g by 10-20 cm. broad, their sinuses narrow 

 or closed and about one third the length of the blades ; petioles 

 terete, about 5 mm. in diameter and often 2.5 meters long; sub- 

 mersed leaves about half the dimensions of the floating ones, with 

 petioles not over 3 dm. long, and blades nearly as broad as long, 

 very thin and crisped : peduncles similar to the petioles : flowers 

 about 3 cm. in diameter : fruit green. 



Nymphaea fluviatilis seems to be quite common in creeks, small 



rivers, and the swamps of large rivers, but apparently never in 



ponds, in the coastal plain. I have seen it in the Savannah River 



swamp in the southeastern corner of Effingham County, in Rocky 



M 



9 - 



Oeeechee River near Chalker. M 



and Meldrim, in the Canoochee at the type-locality (mentioned be- 

 low), in the Ohoopee near Ohoopee and Reidsville, in the swamps 

 of the Altamaha near Doctortown and Barrington, in the Oconee 



