POLYANDRiA MONOGYNiA. NyiDpIiaea. 309 



4-phj'llo aequalibus, stigmate radiis 10 — 20. erertis. — 

 IViUd. sp.pl. 2./). 1153. 



N. alba. Mich.Ji. anier. 1. p. 311. Walt.Ji. car. 155. 



Castalia pudica. Saliib. I. c. p. 72. 



Icon. Bol. mag.Sig. Bot. rep. 2g7. 



. N. foliis cordatis integerrimis obtusis, lobis divaricatis rosea, 



acntis, petiolis pedunculis foliisque subtus purpureis^ 

 calycibus petalisqne extiis roseis. 



Icon, IViUd. hort. beroL. Sp? 



In ponds and slow-flowing waters : Canada to Carolina. 

 1/ . July, V. V. Flowers white, fragrant. The va- 

 riety /3. is probably a distinct species, which only fur- 

 ther observation can decide. It resembles N. pygmoea. 



439. NUPHAR. 

 Nymphaea. 



Smith prodr.Jl. grcec. \. p.ZQl. 



Gen. pi. 8S6. Salisb. in annals of bot. 2. 

 • P-7i- 



1. N, foliis cordatis integerrimis, lobis approximatis, calyce hitea. 



5-phyllo, stigmale repando 14 — 20-radiato profunda 



umbilicato. — Ait. kew. ed. 2. v. 3- p. 295. 

 Nymphaea lutea, IFi/ld. sp. pi. 2. p. 1151. 

 Nymphaea umbilicalis. Salisb. I. c. 

 Icon. Etigl. lot. 15Q 

 In lakes on the Allegany mountains, i/ . June, July. 



V. V. Flowers yellow, as are all the following species, 



2. N, foliis erectis cordatis integerrimis, lobis divaricatis, advena. 



calyce 6-phyllo, stigmate leviter umbilicato 13-radiato, 



pericarpio sulcato. — Ait. keiv. ed. 2. v. 3. p. 2g5. 

 Nymphaea advena, Willd. sp. pi. 2. p. 1152. 

 Nymphaea arifolia. Salisb. I. c. 

 Icon. Bot. mag. 684. Willd. hort. berol. 38. 

 In all ponds and ditches, even in salt water : Canada 



to Carolina. 1/ , July, Aug. i<. v. Resembles the 



foregoing species, but is distinguished at first sight by 



its upright leaves. 



3. N. foliis cordatis, lobis subapproximatis, calyce 5-phylIo, Kalmiana. 



stigmate inciso 8 — 12-radiato. Ait. hew. ed. 2. v. 2. 



p. 295. 

 Nymphaea lutea /3. Kalmiana. Mich.Ji. amer. 1. p. 

 Nymphaea lutea. Walt.Ji. car. 154. 

 Icon. Bot. mag. 1243, 

 In ponds : Canada to Carolina ; rare. 1/ . July, 



311. 



Aue. 



V. V. Flowers very small in comparison with other». 



