cHENOPODiuM. PENTANDRIA. DIGYNTA. 295 



FL I. p. 198. B i g. Bost. p. 65, Elliott SL I. p. 330, 

 Roem.^ Schult,\\. ^. 237* 



Root annual. Stem erect, 2 — 4 feet high, green, angular. Leavss 

 covered with a whitish mealiness, unequally toothed. Ra- 

 cemes with few branches, conglomerate. Seed very smooth. 



Hab. In cultivated grounds, waste places, Sec. July — Sep- 

 tember. A very common weed, which has been introduced 

 from Europe. Lambs-quarters^, 



jS. viride Ph.: leaves greener and more entire ; racemes 

 more branched, a little leafy. C. viride Willd. Spec. I. p. 

 1303. 



Hab. With the preceding, of which it is certainly a mere va- 

 riety. 



4. C. hyhridum L. : leaves ovate-cordate, acuminate, an= 

 gtilarly toothed; racemes axillary, paniculate, divaricate, 

 leafless. Willd. Spec. L p. 1303* Smith FL Brit. I. p. 

 278. Eng. Bot. t* 1919. Pursh Fl.l.^. 198. Big» 

 Bost. p. 66. Roem. ir Schult, VI. p. 259. 



Root annual. Stem 2 — 3 feet high, angular and striate. Leaves 



large, nearly smooth, bright green, with large unequal teeth. 



Racemes much branched, subcymose. 

 Hab. In waste places, and on road sides. July — August. Ndt 



uncommon near the city of New-York, as at Brooklyn. Near 



Newark, New-Jersey, Sec. Introduced. 



5. C. ruhrum L, : leaves rhomboid-triangular, deeply 

 toothed and sinuate ; racemes erect, compound, leafy. 



Willd. Spec. I. p. 1300. Smith FL Brit. I. p. 274. £?jg-. 

 JBof. p.'66. Roem. ^ Schult. VI. p. 253. 



Root annual. Stem 2 — 3 feet high, erect, reddish. Leaves large, 

 dark green, a little shining, with large unequal teeth, acute at 

 the base. Racemes longer than the petioles, much compound, 

 interspersed with small leaves j glomerules minute. Seeds 

 very small. 



Hab. In waste places. In the vicinity of New-York ; rare. 

 Near Williamstown, Massachusetts. Dewey. In the neigh^ 

 bourhood of Boston. Bigelonv. Also in many other parts 

 of New-England. Probably introduced. 



6. C. ambrosioides L,: leaves lanceolate, remotely tooth- 

 ed ; racemes simple, axillary, leafy. Willd. Spec,}.^. 

 1304. Pursh FL I. p. 1 98. Elliott Sk. J. p. 330, 

 Roem.^ Schult. VI. p. 260. 



Root annual. St^m 1 — 2 feet high, much branched, often dif- 

 fuse, green, a little pubescent. Leaves an inch and a half long, 

 on short petioles, acute at the base, with rather distant teeth j 



