95^ PBNTANDRIA. DIGYNIA 



* 



1. Trifoliatum. 



S. foliis omnibus tiifo. [ All the leaves trifoliate; 

 Batls,- foliolis dentatis, in- leaflets dentate, the lower 

 ferio?'ibLis ovalibus ; ped- | ones oval ; peduncles by 



uncuHs geminis; frueti- | pairs j fruit nearly round 

 bus subrotundis, Mich, 

 i. p.l68. 



Piirsh, Kp. 194. 



Lower leaves 2i--3 lobed ; the upper, ov»l lanceolat«. (Ti 

 ininab solitary, on lang peduncles. Mich. 

 Grows in the upper districts of Carolina.. 

 Flowers 



2. PUSILLUM. 



S ? foliis triteniatis, J Leaves triternate, ma- 

 multipartitis ; unibellulis ny parted ; uniliels kw 

 paucifloris (5—0) ; fiticti- flowered (5—6) ; fruit 

 bus muricatis. E. | muricate. 



Mich. I. p. 168. Pursh, 1. p. l94. 

 Ammi divaricatum, Pers. l.p. SOS. 

 Daucus divaricatus, Walt. p. 114. 

 Ligusticum pusillum, Pera. 1. p. 315. 



Annual. Stem 1 — 2 feet high, glabrous, geniculate, dichotomous, 

 branches expanding. Leaves alternate, much divided ; segments li- 

 near, glabrous, finely serrulate near the summit. Universal and par- 

 tial umbel, with 5 — 6 unequal rays, the middle one frequently sessile. 

 ITniversal involucrum j partial 3 leaved j leaves small, lanceolate. 

 JPctafs oval, obtuse, entire, flat. Filaments half as long as the corol- 

 la. Fruit nearly globose, compressed, pointed with the styles. Seed 

 striate, the ndges (5 i) muricate, with membranaceous scales. 

 ,^ I his httlcplant has some equivocal characters, and has been placed 

 m many different genera. It wants the involucrum of Daucus or 

 Ammi, to which it is allied in habit. I have followed Michaux with- 

 out having sufficient knowledge of the genus Sion to determine his 



correctness. 



Grows in dry, sandv pastures, 

 r lowers March— April. 



CfCUTA. Gen. pl. 486. 



Frndus subovatus, sul- [ Fruit somewhat ovate, 

 catus. Involucrum uni- j furrowed. Universal in- 

 tersale j partiale 3« 5 I volucrum 0, partial 3—5 



phyUiun. Umved. 



