242 CHENOPODIACE.\E 



15. C. album L. Stem erect, 6-30 dm. high; leaf-blades ovate or lanceolate, 

 more or less rhombic, 2-8 cm. long, acute or obtuse, usuallj^ hastately lobed; 

 inflorescence dense; sepals with light margins, enclosing the fruit; seed black, 

 shining. Fields, waste places, and thickets: Newf. — Fla. — Calif. — B.C.— 

 Yukon: Eurasia. Plain — Submont. Jl-S. 



16. C. paganum Reichenb. Stem erect, 0.5-3 m. high; leaf-blades ovate to 

 broadly lanceolate, 3-15 cm. long, coarsely sinuate-dentate, acute at the apex, 

 thin; inflorescence dense, much-branched; sepals sharply carinate, enclosing the 

 fruit; seeds black, rugulose-pitted. Waste places: Mass. — Va. — N.AI.— Colo.; 

 adv. from Eu. Plain — Suhvwnt. Jl-S. 



17. C. murale L. Stem erect or decumbent, 1-6 dm. long, widely branching; 

 leaf-blades thin, rhombic-ovate, 2-8 cm. long, acute, coarsely sinuate-dentate, 

 cuneate or truncate at the base; flower-clusters small, shorter than the leaves; 

 sepals oblong, obtuse; seeds firmly adherent to the pericarp, sharp-angled. 

 Waste places: Me. — Fla. — CaUf. — B.C.; Mex. and W. Ind.; adv. or nat. from 

 Eu. PlainSuhmont. Mr-0. 



18. C. salinum Standi. Stem prostrate, decumbent or ascending, freely 

 branched, more or less fleshy; leaf -blades broadly lanceolate to triangular -ovate 

 or oblong, acute, 2-3 cm. long, sinuately toothed and somewhat hastate; flowers 

 in small axillary spikes shorter than the leaves; sepals obovate, rounded at the 

 apex; seeds finely tuberculate. C. glaucum Am. auth., mainly. Alkahne soils: 

 Alta. — Neb. — -Colo. — -Utah — Ore. Plain — Submont. Jl-S. 



19. C. hybridum L. Stem erect, 6-13 dm. high; leaf-blades rhombic-ovate 

 or triangular-ovate, long-acuminate, sharply sinuate-dentate, with 1-4 large 

 teeth on each side, or the uppermost entire, 1-2 dm. long; flowers in large open 

 l)anicles; sepals oblong, slightly keeled; seeds firmly attached to the pericarp, 

 acute-margined, punctate. Woods, thickets and waste places: Que. — Vt. — 

 N.Y.— Ky.— N.M.— CaUf.— B.C.; nat. from Eu. PlainSubmont. 



20. C. rubrum L. Stem erect, branched, 3-8 dm. high; leaf -blades thick, 

 triangular-hastate to lanceolate, 3-10 cm. long, coarsely sinuate-dentate or the 

 upper entire, nearly glabrous, dark green; flower-clusters densely spicate on short 

 branches; sepals 2-5, obtuse, rather fleshy; seeds easily separating from the peii- 

 carp, less than 1 mm. in diameter. C. succosum A. Nels. Coast Blite. Alka- 

 hne or saline soil: Newf.— N.J.— Mo.— N.M.— Ariz.— B.C.; Eu. Plain— Suh- 

 mont. Jl-S. 



21. C. humile Hook. Stem decumbent or spreading, divaricately branched; 

 leaf-blades obovate, spatulate, or lanceolate, the upper linear, 1-3 cm. long, 

 fleshy, glabrous or nearly so; flower-clusters in small axillary spikes; sepals 

 oblong, obtuse, somewhat fleshy; seeds less than 1 mm. broad, easily separating 

 from the pericarp. Alkali Blite. Alkaline meadows: Sask. — Neb. — Colo. — 

 Cahf. — B.C. Plain — Submont. Je-N. 



22. C. Botrys L. Stem erect, 1-6 dm. high, branched ; leaf -blades 1-5 cm. long, 

 oblong or ovate, irregularly pinnatifid; flower-clusters in small, axillary' cj^mes; 

 seeds horizontal or vertical, 0.8 mm. broad, adherent to the pericarp. Jerusa- 

 lem Oak. Waste places: N.S. — Ga. — 'Tex. — Calif. — B.C.; Mex.; nat. from 

 Eu. Plain— Mont. Jl-0. 



23. C. incisum Poir. Stem 2-5 dm. high, branched; leaves lanceolate or 

 ovate in outline, 2-4 cm. long, sinuate-pinnatifid or sinuate-dentate, with entire 

 lobes or teeth; flowers in axillary cymes; sepals acute, carinate; seeds about 0.5 

 mm. broad, obtusely margined. C. cornutum (Torr.) B. & H. Drv places: 

 Colo. — N.M.— Ariz.;' Mex. Son. — Submont. Je-S. 



2. BLITUM L. Straw^berry Blite, Strawberry Pigweed. 



Annual fleshy herbs, with light green, glabrous, toothed leaves. Flowers 

 small, green or reddish, aggregate in small axillary, head-hke clusters, or the 

 upper clusters forming an interrupted spike. Calyx 2-5-lobed, becoming fleshy 

 and bright red in fruit. Stamens 1-5, mostly 2. Ovary 1-celled; styles 2-5; 



