33 
TRXANDRiA MONOGYNiA. Heteranthera. 
Anonymos aquatica graminifoiia, Clayt.num 814. 
Icon. Mich.Ji. amer. 1 t. 5.f. 2. jacq. I c. t. 59. 
Floating, in the waters of Pensylvania, Virginia, &c. 3/ . 
July. v. v. ; v s. in Herb. Gronov. Flowers yellow. 
43. SERPICULA. Gen.pl 1413. 
1. S. floribus triandris hermaphroditis, stigmatibfis ligulatis 
reflexis bifidis, foliis ternatis linearibus acutis. 
Elodea canadensis. Mich.fi. amer. 1 . p. 20. 
In stagnant waters, frequent ; from Canada to Virginia. 
3 / . July. v. v. Flowers very small and delicate, 
white ; leaves when magnified very finely serrulate. 
Michaux describes the leaves to be oblong and obtuse, 
which is only the case in the early part of the season : 
at flowering time they certainly are long, linear, and 
acute. 
44. XYRIS. Gen.pl. 89. 
1. X. foliis longissime-gramineis scapisque tortuosis* capi- 
*. tulo globoso : squamis subrotundis obtusis. 
X. indica. Willd. sp. pl, 1. p . 254 ? 
Icon. Pluk. aim. t AiQ.f. 4 ? 
In overflowed meadows and small ponds : Pensylvania to 
Virginia. 3/ . June, July. v. v. Flowers yellow. 
2. X. foliis lineari-gramineis, scapo ancipiti, capitulo ovato 
acuto : squamis obtusis. 
X. caroliniana. Lam. illusir. 1. p. 132. Walt. Ji. car. 6g, 
X. Jupicai. Mich.Ji. amer. 1. p. 23. 
In low grassy fields, in sandy soil, from New Jersey to 
Florida. If.. June — Aug. v. v. Heads small | 
flowers yellow $ it is extremely variable* 
3. X. foliis subulato-gladiatis, scapo tereti, capitulo globo- 
so. Mich.Ji. amer. 1. p. 23. 
In low meadows of Lower Carolina and Georgia. 3/. 
July. v. s. The smallest species ; flowers yellow. 
45. SPARGANXUM. Gen.pl. 1402. Bur-reed. 
i. S. foliis basi triquetris lateribus concavis, pedunculo 
communi ramoso, stigmate lineari. Smith, brit, 3. 
p. 961. IHilld. sp. pl. 4. p. J99. 
S. erectum. Sp. pl. 1378. 
Icon. Curt. land. 5. t,66. Engl lot. /44» 
VOL. I, P 
occidentalis^ 
indica. 
caroliniana , 
lremfolia a 
ramosum. 
