OF ARTS AND SCIENCES. 97 



inches long, broadly ovate, acuminate, subcordate at base, sinuate- 

 dentate with 2-3 distant teeth on each side ; flowers in small clusters 

 in slender terminal and axillary panicles ; seed f of a line broad, the 

 margin acutish. — Introduced eastward, but indigenous from Kentucky, 

 Texas, and New Mexico to Oregon. 



ChenopocHicm urbicum? Hooker, Fl. Bor.-Am. 2. 127. 



Chenopodium hi/bridum, var. simplex. Torrey, Ann. N.Y. Lye. 2. 239. 



Chenopodium hijbridum, Linn. Torrey, Nicollet's Rep. lo9 ; Pao. R. R. Rep. 

 4. 121). Nuttall, Fl. Ark. 1G5. Scheele, Roemer's Texas, 445. Carey, 

 Am. Jour. Sci. 2. 7. 170. Gray, Proc. Acad. Phil., 1863, 76; Manual, 

 407. Bourgeau, Palliser's Rep. 200. Watson, King's Rep. 6. 287. Por- 

 ter, Hayden'a Rep., 1871, 492; Fl. Col. 117. Coulter, Hayden's Rep., 

 1872, 779. 



Collectors : — James ; Richardson ; 284 Nicollet ; 142, 189 Fremont ; 715 

 Fendler ; 280 Lindheimer ; Wright ; Lyall ; Parry ; 485 Hall & Harbour ; 

 974 Watson ; Vasey ; 257 Wolf. 



9. C. MURALE, Linn. Slightly mealy, stout, ascending or decum- 

 bent, 1-2 feet high ; leaves mostly large, broadly triangular to lanceo- 

 late, 1-3 inches long, acute, truncate or cuneate at base, coarsely 

 sinuate-dentate ; flowers in small clusters in axillary usually rather 

 dense spicate panicles, mostly shorter than the leaves ; seed acutely 

 margined. — Introduced eastward, and found on the western coast from 

 San Francisco to Southern California. 



Chenopodium urbicum. Bolander, Catalogue, 25. 



Chenopodium murale, Linn. Hook. & Arn. Bot. Beechey, 157. Carey, Am. 



Jour. Sci. 2. 7. 170. Bromfield, Hook. Lond. Jour. Bot., 1848, 211. 



Chapman, 876. Gray, Manual, 407. 



Collectors : — 96, 2387 Brewer ; Horn ; Gregg ; Greene. 



Var. FARiNOSUM. Leaves glaucous-mealy beneath ; flowers densely 

 clustered in short axillary spikes ; pericarp membranous and not 

 closely adherent. — A remarkable and probably distinct form, reported 

 as common in moist places near San Francisco (2489 Brewex-). 



10. C. URBICUM, Linn. Erect, 1-3 feet high; flowers in slender 

 spicate panicles, at least the upper ones exceeding the leaves ; margin 

 of the seed obtuse or acutish ; otherwise like 0. murale. — Introduced, 

 in the Eastern states. 



Chenopodium rhombifolium. Muhl. in Willd. Enum. 1. 288. R. & S., Syst. 



6. 256. Bromfield, Hook. Jour. Bot., 1848, 211. Carey, Am. Jour. Sci. 



2. 7. 169. 

 Chenopodium urbicum, \a.T. rhombifolium. Moquin, Enum. Chenop. 82; DC. 



Prodr. 132. 70. Gray, Manual, 407. 

 Chenopodium urbicum, Linn. Engehn. PI. Upp. Miss. 206. Gray, Manual, 407. 



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