TENTANDRIA. DIGYNIA. l99 



Species. 1. C. Bonus Heririctis. I have, as yet, nei- 

 ther seen tliis plant indigenous nor naturalized, in the 

 United States. 2. mxirale. 3. album. 4. hybridum. Com- 

 iTion around Philadelphia. 5. Botrtja. Indigenous on the 

 banks of the Missouri and Mississippi. Common in Penn- 

 sylvania in gardens and wastes. 6. ambrosioules. Much 

 more common arouwd Philadelphia than the following. 

 7. anthelminticiim. 8. *subspicatum. Stem herbaceous, 

 sabquadrangular; lower leaves hastate-ovate, bidentate, 

 acute, upper leaves sublanceolate; glomeruli approximate, 

 subspicate, naked. Obs. Leaves and stem whitish and 

 somewhat furfuraceous; racemes glomerate, simple, ter- 

 minal; leaves with a single indention on either side, near 

 the base, which is cuneaie. Hab. In sahne soils around 

 the Mandan village, Missouri. 



Chiefly an European genus, occupying wastes and gar- 

 dens. Of the above species enumerated, as now common 

 in the United States, Nos. 5, 6, 7, and 8, only, are indi- 

 genous. 



285. SALSOLA. L. (Salt-wort.) 



Calix 5-partcd, with a capsular base. Corolla 

 none. Style bifid. Seed 1, horizcjntal, cochle- 

 ate, covered by the connitent calix. (Fruiting 

 calix in many species surrounded by a membra- 

 naceous df)rsal margin.) 



Stem shrubby or herbaceous; leaves alternate, very 

 rarely opposite, terete or flat, often succulent, sometimes 

 spinescent; flowers terminal or axillary, frequently tri- 

 bracteate. 



Species. 'i.9).Kali. Herbaceous, decumbent; leaves 

 subulate, canaliculate, spinose; calix marginated, axillary. 

 |3- carolima7ia, leaves dilated, shorter, terete, nerveless, 

 spinose; stem smooth or pube«icent; calix with a broader 

 margin. Obs. Stem diffusely decumbent; flowers tri- 

 bracteate, solitary, axillary; calix unequal, in fruit car- 

 tilaginous, orbicularly depressed and connivent, with 

 subulate points, segments unequal, 2 much smaller, sur- 

 rounded with a membranaceous alated dorsal margin, 

 reddish and elegantly veined. Seed cochleate,or resem- 

 bling a small univalve shell, covered with a membrana- 

 ceous episperm; perisperm none. Hab. On the strand 

 of Egg-H.rrbour, New Jersey. Certainly, according to 

 the suggestions of Mr. Pursli, a mere variety of S. .Kali, 



2. sal^a. Obs. About a foot high, stem at "first nearly 

 simple and erect, with longish succulent linear un^nn- 



