382 HEXANDRIA. POLYGYNIA» alisma, 



nal nerves, 2 of which arise from the midrib above its base, 

 and 2 are mari^iHal. Scafie I — 2 feet high, triangular. Pa- 

 Tiicle much decompounded in a verticUlate manner, with ovate, 

 acuminate bracts at the division of the branches. Calyjo 

 shorter t!ian the corolla; leaflets dilated, roundish. Petals 

 larger than the calyx, white, with a tinge of purple, nearly or- 

 bicular, deciduous. &awens shorter than the corolla; anthers 

 I'oundish. Germens superior, numerous, (6 — 10); styles 

 short ; stigmas obtuse. Ca/isules rarely with more than one 

 set'd. compressed, obtuse. 

 Hab la ditches and on the borders of ponds ; common. July- 

 August. 



^, parvijlora* : leaves oval, 5 — 7-nerved, acuminate; 

 flowers very small. P. parvijlora Pursh Ft, I. p. 253. 

 Elliott Sk. I. p. 234. 



Resembles the preceding, but has smaller flov/ers, and the leaves 



not more than 7-nerved. 

 Hab. In ditches and bogs ; generally near the salt water. August 

 Certainly no more than a variety of A. Plantacro^ 



