CHENOPOD I A CEA E. 371 



glabrous; stem leafy, 3-8 dm. tall, the branches strict or ascending. Leaves thick, 

 3-10 cm. long, rhombic-ovate or rhombic- lanceolate, petioled, narrowed at the 

 base, coarsely sinuate-dentate or the upper entire; flowers in erect compound 

 leafy-bracted >pikes; calyx 3-5-parted, its segments slightly fleshy, red, not keeled, 

 obtuse, about as long as the utricle; stamens I or 2; stigmas short; seed hori- 

 zontal, shining, separating from the pericarp. On the seacoast, Newf. to N. J., 

 and in saline soil in the interior across the continent, south to central N. Y., Neb. 

 and Br. Col. Also in Europe and Asia. July-Sept. 



12. Chenopodium Bonus-Henricus L. Good King Henry. (I. F. f. 

 1370.) Perennial by a thick rootstock, glabrous; stem erect, 3-8 dm. tall. Leaves 

 broadly trangular-hastate, palmately veined, entire or undulate, rarely with I or 2 

 small teeth, the lower long-petioled, the upper much smaller; flowers simple or 

 panicled, commonly dense spikes sometimes 7- 10 cm. long ; calyx 4-5 -parted; 

 stigmas elongated; seed vertical, or that of terminal flowers horizontal, black, 

 shining, blunt-edged. In waste places, N. S. to Ont., Mass. and southern N. Y. 

 Naturalized from Europe. June-Sept. 



13. Chenopodium Botrys L. Feather Geranium. Jerusalem Oak. 

 (I. F. f. 1371.) Annual, glandular-pubescent and viscid, strong-scented; stem 

 2-6 dm. tall. Leaves ovate or oblong, deeply pinnately lobed, petioled, 1-5 cm. 

 long, or the uppermost much smaller, the lobes mostly obtuse and dentate; flowers 

 very small, in numerous loose axillary cymose panicles; calyx 3-5-parted, the 

 segments lanceolate, acute, thin, rather longer than the utricle; seed horizontal or 

 vertical, firmly attached to the pericarp. In waste places, N. S. to Minn., Ore., 

 N. Y., Ky. and Mex. Naturalized from Europe. Native also of Asia. July-Sept. 



14. Chenopodium ambrosioides L. Mexican Tea. (I. F. f. 1372.) An- 

 nual, glabrous or slightly glandular- pubescent, strong-scented; stem leafy, 6-10 dm. 

 high, angular and grooved. Leaves oblong or oblong-lanceolate, narrowed to a 

 short petiole, repand-dentate, undulate or the upper entire, 2-9 cm. long, the upper 

 numerous and much smaller; flowers in small dense axillary spikes; calyx usually 

 3-parted, completely enclosing the fruit; pericarp readily separable from the seed; 

 seed horizontal or vertical, shining. In waste places, Me. and Ont. to Fla., west 

 to Cal. Naturalized from tropical America. Aug.-Oct. 



15. Chenopodium anthelminticum L. Wormseed. (I. F. f. 1373.) An- 

 nual or sometimes perennial, similar to the preceding species and perhaps inter- 

 grading with it; stem somewhat stouter. Leaves lanceolate or ovate-lanceolate, 

 usually acuminate at the apex and narrowed at the base, slender-petioled, coarsely 

 dentate or incised, 5-13 cm. long, the lower 2 cm. or more wide, the upper gradu- 

 ally smaller; flowers in linear usually bractless panicled spikes, or the lower spikes 

 leafy-bracted. In waste places, Mass. to Ont., Wis., Fla. and Mex. Naturalized 

 from Europe. Aug.-Oct. 



2. ROUBIEVA Moq. 



A perennial herb, glandular-pubescent, strong-scented, prostrate, and diffusely 

 branched, with narrow small short-petioled deeply pinnatifid leaves. Flowers 

 small, green, perfect, or pistillate, solitary, or in small axillary clusters. Calyx 

 urn-shaped, 3-5-toothed, narrowed at the throat, in fruit becoming obovoid, strongly 

 reticulated and closed. Stamens 5. Styles 3, exserted. Wall of the pericarp thin, 

 glandular. Seed vertical. Embryo a complete ring in the mealy endosperm. 

 [Name in honor of G. J. Roubieu, French botanist.] A monotypic genus of S. Am. 



1. Roubieva multifida (L.) Moq. Cut-leaved Goosefoot. Roubieva. 

 (I. F. f. 1374.) Very leafy, prostrate, or the branches ascending, 1.5-3.5 dm. 

 long. Leaves lanceolate or linear-lanceolate or linear-oblong in outline, 1-3 cm. 

 long ; flowers 1-5 together in the axils, sessile, less than 1 mm. broad, some per- 

 fect, some pistillate ; fruiting calyx, 3-nerved and strongly veined, I mm. thick ; 

 utricle compressed. In waste places and ballast, S. N. Y. to Va. Naturalized or 

 adventive from tropical America. June-Sept. 



3. BLITUM L. 



Annual succulent branching herbs, with alternate hastate petioled leaves. 

 Flowers small, aggregated in globose axillary »essile heads, or the upper heads 

 forming an interrupted spike. Calyx 2-5-lob©d, becoming pulpy and bright red 



