* 



f 



a 



l^OLYANDRIA MONOGTNlA> 



-*rf 



NUPHAR. Smith. 



Catyx 5 



6 pliyl 



Ca lyx 5 — 6 -le a v e i 



Ins. Petala pliirima, Petals uumerous, m 

 receptaciilo cum sta- serted on the recepta 



minibus inserta, dor- 

 so nectarifera. 



Stig' 



ma radiato-sulcatum, 

 sessile. Bacca 



cle with the stamens, 

 nectariferous on the 

 back. 



Stigma radia 



lilocularis 



?. 



■r^ 



polysp 



ma. 



1. Ad VENA? 



N. foiiis cordatis, 

 integer rimis^ lob is ro- 

 tundatis; 



sd, furrowed, sessile. 

 Berry many ceiled, 

 many seeded. 



calyce 



6 



phyllo; stigmate levi 





Leaves cordate, en- 

 tire, with the lobes 

 round; calyx 6-leav- 

 ed 



ter umbilicato,10 



14 



radiato;pericarpio sul 



cato. 



? 



stigma 



shghtly 



umbilicate, with 10 



14 



rays; 



i 



furrowed. 



pericarp 



' Piirsh 2. p. 369. 

 ISymphsea Advena. Sp. pi. 2. p. 1152. Mich. 1, p. 311* 

 Nymph^a lutea. Waltl p. 154. 



B^oot perennial^ tuberous, creeping. Leaves on spiral petioles, large, 

 exactly cordate (with lobes somewhat tnincatCj) coriacdous, glabrous, 

 sometimes erect, sometimes floating on the surface of tlie water. Floio^ 

 ers solitary, terminal, on spiral peduncles, generally elevated a few 

 inches above the surface of the water. The three exterior leaves of 

 tbe calyx small, round^ green ; the three interior larger, round, yellow, 

 tinged with green at base. Filaments very short. Stigma with 10 to 

 14 rays and the margin entire. 



Grows in the fresh water rivers ; abundant about the head of tide was^ 

 ter, rarely found in the vicinity of salt w^ater. 



Flowers from April to August : perhaps later. 



2. SAGITTyEFOLIA. Walt. 



N. foliis elongatis 

 sagittato-cordatis^ ob 



? 



date 



Leaves long, cor 



and 



sagiUate, 



tusis 5 calyce 6-phyllo, | obtuse 5 calyx 6-Ieav 



* 



