PENTANDMA DIGYNIA. 



34f6 



6. Graciim'. i3a^dwin. 

 E. foliis petiolatis, oval- 



♦• 



ibus, integris ; caule ra- I entire 



Leaves petiolate, oval, 



tnosissimo, tenui; capi- I slender 



stem branching^ 



heads 



nu'iie 



tulis numerosis, iniiiimis ; j rous, very small,* invo- 

 involucris diphyllis, trift- j lucrum S leaved, 3 cleft, 



dis, linearibus. 



B. 



linear. 



Root fibrous, annuaL Stem generally prostrate. Leaves variable, 

 oval, orate, sometimes 3 lobed and denticulate. The divisions of the 



late, 2 



1 or 2 teetli. TJ. 



ce<H» 



:^ 



Grows in the low pine barrens near St. Mary's. Very common 

 along the sea coast to the south of Augustine. 



June — Jul 



Mr 



«on, every way larger than the preceding, yet resembling it too much 

 to be separated withont further examination. Involucrum twice as 

 long as the head, 6 leaved, or with 2 leaves so deeply 3 cleft as to 

 appear 6 leaved, 2 small teeth near the base of each leaf, and some- 

 times 2 smaller near the summit. Corolla white ; sometimes involu- 

 crum, chaff, and corolla bright azure. The E. integrifolium of Wai- 

 ter appears to be allied to these plants. 



HYDROCOTYLE. Gen. pl. 4.37. 



Umhella simple: 

 lucro 4 phyllo. 

 integra. Semina sQxm 



Umbel simple, with th^i 

 Petala \ involucrum 4? leaved. Pe- 



biculato-compressa 



1. Interrupta. 

 H. foliis 



peltatis, dupl 



tals entire, 

 pressed, sei 



Seed 



com 



Muhl. Cat 



biculatis 



Leaves orbicular, peltat 



doubly crenate 



pike 



tis ; spicis subramosis ; sometimes divided : flow 



^- * 



floribus verticillati 



V 



H. Tulgaris, Mich 



E. I ers verticillate. 



1. Purshjl.p. 190. 



Perennial, creeping. Stems terete, glabrous, branching. Leaves 

 alternate, strictly peltate, glabrous, slightly crenate, petiol 

 inches long. Smkes axillary and opposite the leaves. Flowers ia 

 spikes, sessile, forming whorls 2—5 fines a part. Cal 

 •rated line or margin around the summit of the germ. " Corolla 5 p4- 



talled, nearly white. Petals lanceolate. Ulaments ahorter thaa t[i« 



^x a mere ele 



rli 



> 



ar 



-**■ 



