POLYANDRiA MONOGYNiA. Nymphsca. 



4-phyllo aequalibus, stigmate rndiis l6 — 20. ereclls. — 

 Willd. sp.pl. 2. />. 1153. 



N. alba. Mich.Ji. amer. 1. />, 311. IValt.fl. car.] 55. 



Castalia pudica. Salisb. I. c. p. 72. 



Icon. Bot. mag.Sig. Bot. rep. 297. 

 . N. foliis cordatis integerrimis obtusis, lobis divaricatis 

 acutis, petioiis pedunculis foliisque subtus parpureis, 

 calycibus petalisqne extus roseis. 



Icon, in/ld. hort. beroi. 39 ? 



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

 %. July. V. V. Flowers white, fragrant. The va- 

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

 ther observation can decide. It resembles iV, pygmcea. 



369 



439. NUPHAR, Smith prodr.Jl. or cec. l.p.ZQl. 



Nymphaea. Gen. pi. 8S0. Salisb. in annals of bot. 2. 

 P-7i. 



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



5-phyllo, stigmate repando 14 — 20-radiato profunde 



umbilicato. — jiit. hew. ed. 1. v. 3 p. 2Q5. 

 Nymphaea lulea. fVilld. sp. pi. 2. p. 1 151. 

 Nymphaea umbilicalis, Salisb. I. c. 

 Icon, Engl. lot. I5g. 

 In lakes on the Allegany mountains. 1/ . 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. — Mt. keiv. ed.2. v. 3. p. 2Q5. 

 Nymphaea advena. IFilld. sp. pi. 2. p. 1152. 

 Nymphaea arifolia. Salisb. I. c. 

 Icon. Bot. mag. 684. JFilld. 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-phyllo, Kalmiana. 



stigmate inciso 8 — 12-radiato. jlit. kew. ed.2. v. 2. 



p. 295. 

 Nymphaea lutea Q. Kalmiana. Mich.Ji. amer. I. p. 311. 

 Nymphaea lutea. Walt.Ji. car. 154. 

 Icon. Bot. mag. 1243. 

 In ponds : Canada to Carolina; rare. 7/. July, Aug. 



V, V. Flowers very small in comparison with others. 



