TRiANDRiA MONOGYNiA. Hcteranthera. 



Anonymos aquatica graminifoiia. Clayt. num. 814. 

 Jcon. Mich.ji.amer. \ t. 5.f. 2. Jacq I. c. t. 5g. 

 Floating, in the waters of Pensylvania, Virginia, Sec % . 

 July. V.V.; v.s. in Herb Gronov. Flowers yellow. 



33 



43. SERPICULA. Gen.pl.lAlZ. 



S. floribus triandris hermaphroditis, stigmatibus ligulatis 

 reflexis bifidis, fbliis teruatis linearibus aciuiis. 



Elodea canadensis. Mich.fi. amer. 1. p. 20. 



In stagnant waters, frequent ; from Canada to Virginia. 

 % . July. v.v. t lowers very small and delicate, 

 ■white ; leaves when magnified very finely serrulate. 

 Michaus. describes the leaves to be oblong and obtuse, 

 which is only the case in tlie early part of the season : 

 at flowering time they certainly are long, linear, and 

 acute. 



occidentalism 



44. XYRIS. Gen. pi. eg. 



1. X. foliis longissime-gramineis scapisque tortuosis, capi- tndica. 



tulo gioboso : squaniis sabrotundis obtusis. 

 X. indica. JVilld. sp. pi 1 . p, 254 ? 

 Icon. Pluk.alm. t 4l6./. 4 ? 

 In overflowed meadows and small ponds : Pensylvania to 



Virginia. % . June, July. v. v. Flowers yellow. 



2. X. foliis lineari-gramineis, scapo ancipiti, capitulo ovato caroliniana. 



acuto : squamis obtusis. 

 X. caroliniana. Lam. illustr. 1. p. 132. Wult.fi. car.Qg^ 

 X. Jupicai. Miih-fi. amer. 1. p. 23. 

 In low grassy fields, in sandy soil, from New Jersey to 



Florida. 1/. June — Aug, v. v. Heads small) 



flowers yellow J it is extremely variable. 



3. X. foliis subulato-gladiatis, scapo tereti, capitulo globo- IrevifoUa, 



so. Mich.fi. amer. 1. p. 23. 

 In low meadows of Lower Carolina and Georgia. %. 

 July. V. s. The smallest species ; flowers yellow. 



45. SPARGANIUM. Gen, pi. 1402. Bur-reed. 



1. S. foliis basi triquetris lateribus concavis. pedunculo 

 communi ramoso, stigmata lineari. Smith, brit, 3. 

 p. 9dl . Willd. sp. pi. 4. p. J99. 

 S. erectum. Sp. pi. 1378. 

 Icon. Ciurt. lond. 5. t.66. Engl. lot. 744. 



ramosum- 



