396 roLYANDBiA poLYGYNiA. SagUtaria, 



1/. Julv, Aug. v.v. leaves not above two incbe» 

 long ; flowers, as in all the following species, white. 



latifoHa. 2. S. foliis ovatis acutiusculis sagittatis, lobis ovatis tenuis- 



sime acuminatis rectis, scnpo siniplici, floribus nionoi- 

 cis, bracteis subrotundis obtusis, — JVilld. sp. pi. 4. 

 p. 409. 

 S. sagittifolia. Mkh.Ji. amer. 2. p 189- 

 major. /3.S. foliis amplis abrupte acutis, scapo subramoso, floribos 



dioicis. 

 In ponds and ditches : Canada to Caro'ina. % . June — 

 Ang. V. V. Leaves large and broad. 



oiiusa. 3. S. foliis dilatato-ovatis rotundato-obtusis mucronatis sa- 



gittatis, lobis approximatis oblongis oblique-acnmina- 

 tis rectis, scapo siniplici tloribus dioicis, bracteis ova- 

 tis acntis. — If^Uld. sp.pl. 4. /^.409- 

 In ditches and shallow pond'? : Pensylvania to Virginia. 

 1/. Jnne — Sept. v. v. leaves the size of Calla pa- 

 lustris. 



hastata. 4. S. foliis oblongo-lanceolalis sensim-acutis sagittatis, lobis 



patenlibus lanceolalis longissime acuminatis, scapo 

 simplici, floribus dioicis, bracteis talycibusque sub- 

 rotundis obtusis. 

 In old ditches : Pensylvania. "U . July, Aug. v, v. 

 Leaves the size of S. sagittijolia ; the lobes very 

 spreading. 



gracilis. 5. S. foliis linearibus obtusinsculis 3-nervibus sagittatis, 



lobis patentibus linearibus elongatis sensim tenuissime 

 acuminatis, scapo simplici paucifloro, floribus dioicis, 

 bracteis brevibus suborbiculatis. 

 In bogs and ditches : Pensylvania to Virginia, particu- 

 larly on the mountains. 1/. July, Aug. v.v. Leaves 

 very slender, about three inches long, measured from 

 the beginning of the petiole. 



heterophylla. 6. S. folis simplicibns linearibus lanceolatisque utrinque 

 acutis, sen ellipticis acutis basi obtusis sagittatis, lobis 

 divaricalis linearibus, scapo simplici paucifloro, flori- 

 bus monoicis, feraineis subsessilibus, bracteis lato- 

 ovatis acuminatis. 

 In sinall ponds and ditches : Pensylvania and New Jer- 

 sey. l/,Juiie — Aug. v.v. Leaves about two inches 

 and a iialf long : this species is easily distinguished 

 by the female flowers being almost sessile. 



