NYMPHS ACE.E. 19 



H. purpurea Mich. Brascnia pcltata Pursh. JB. hydropeltis Torr. 

 HAB. Lakes and ponds. Can. to Geor. July, Aug. . 

 Whole plant covered with a viscid gelatine. Stem floating, 

 long, terete, branched. Leaves oval, peltate, coriaceous, very 

 entire and tinged with purple. Peduncles solitary, long, each 

 springing: from the side of a petiole. Flowers purple. 



Water-Target. 



2. FLCERKIA. mild. 



Calyx of 3 sepals. Petals 3, shorter than the sepals. Style 

 bifid. Pericarp none. Seeds 2 or 3, membraceously coated, 

 superior. Hexandria. Monogynia. 



F. uliginosa MM. F.palustris Nutt. Nectris pinnata Pursk. 



HAB. Marsh.es. Ver. to Virg. April, May. $j$. Stem de- 

 cumbent, terete, slender, smooth. Leaves somewhat succulent, 



_ . . . _ to 



the American edition of Lindley's Introduction to the Natural 

 System of Botany, places this genus with a mark of doubt, un- 

 der the present order. I have followed his suggestion, although 

 it is by no means certain that this is its true place. Further 

 examination may prove that it belongs to some other order, 

 or what is more probable, that it should be the type of a new 

 one. False Mermaid. 



ORDER VIII. NYMPILEACE,E. De Can d. 



Sepals and petals numerous, imbricated, passing gradually 

 into each other. Stamens numerous, sometimes forming with 

 the combined petals, a superior monopetalous corol ; fila- 

 ments petaloid ; anthers turned inwards, adnate. Fruit many- 

 celled, indehiscent. Seeds very numerous. Embryo small, 

 on the outside of the base of the albumen. 



Herbs, with peltate or cordate fleshy leaves arising from a 

 prostrate trunk, growing in quiet waters. 



1. NELUMBIUM. Juss. 



Calyx petaloid, of 4 6 sepals. Petals numerous. Car- 

 pels numerous, deeply immersed in the upper surface of a tur- 

 binate receptacle or torus, 1-seeded. Seed large, round, soli- 

 tary. Polyandria. Polygynia. 



N. luteum WiM. : corol, many petalled ; anthers produced into a 

 linear appendage at the extremity ; leaves peltate, orbicular, very entire. 

 Cyamusflavicomus Salisb. Pursh. C. luteus Nutt. 



HAB, Lakes. N. Y. to S. Car. W. to Miss. July. 2_f . Leaves 

 alternate, peltate. Peduncles very long, more or less scabrous. 



