242 CHENOPODIACEAE 



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, usually 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.M. Colo.; 

 adv. from Eu. Plain Submont. 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. Calif. B.C.; Mex. and W. Ind.; adv. or nat. from 

 Eu. Plain Submont. Mr-O. 



18. C. salinum Standl. 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. Alkaline 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 

 panicles; 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. Calif. B.C.; nat. from Eu. Plain Submont. 



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- 

 line or saline soil: Newf. N.J. Mo. -N.M. Ariz. B.C.; Eu. Plain Sub- 

 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. 

 Calif. 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 cymes; 

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

 LEM OAK. Waste places: N.S. Oa. 'Tex. Calif. B.C.; Mex.; nat. from 

 Eu. Plain Mont. Jl-O. 



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. Dry places: 

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



2. BLITUM L. STRAWBERRY BLITE, STRAWBERRY PIGWEED. 



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

 small, green or reddish, aggregate in small axillary, head-like 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; 



