4 C. urbicum L. β. rhombifolium. Erect, angled, branched; lvs. petiolate, ascending or erect, rhombic-triangular, acute, sinute-toothed, with long, acute teeth, thin, green, the highest lance-linear, subentire; rac. long, erect-panicled, rather dense-flowered, nearly leafless; seed shining, obtuse-edged; fr. partly inclosed. - St. 2 to 3f high, marked with green lines; branches suberect. Lvs. 2 to 3' long. Rac. very strict. Cal. lobes obtuse, green. Stam. exserted. (C. rhombifolium Muhl.)
5 C. Boscianum Moq. Erect, branched; lvs. small, petiolate, divaricate, lance-linear, very acute, thin, entire, glaucous-green above, canescent beneath; spikes loose, leafy; seed shining, acute-margined; fr. wholly inclosed. - Car. to Tex. St. 18' to 2f high, slender, green-striate, branches ascending. Lvs. 5" to 1' long, 1 to 2" wide. Fls. minute, mealy, sessile.
6 C. album L. Pigweed. Erect, sulcate-striate, thinly branched; lvs. petiolate, ascending, rhombic-ovate, cuueate at base, sinuate-toothed or subentire, thin, pulverulent, pale green or whitish, upper oblong or lance-linear, entire; rac. dense or loose, subpaniculate, nearly leafless; seed smooth and shining, acute-edged, wholly inclosed. - The most common of weeds in fields and gardens. St. 2 to 4 to 7f high, beautifully striate with green and purple. Branches subsimple, ascending. Lvs. 18 to 30" long, petiole a third as long. Fls. mealy. Jl. - Sept. (C. viride L., a greener, narrow-leaved var.)
7 C. glaucum. L. Prostrate or ascending, sulcate-striate, branched; lvs, petiolate, oblong or ovate-oblong, obtuse, sinuate-angled or remotely dentate, thin, pale green above, mealy and white-glaucous beneath; rac. simple, leafless, rather dense-flowered; seed shining, acute-edged, partly incoed. - Mass., Penn., rare. Plant somewhat fleshy, If long, smooth. Lvs. 1 to 2 long. Calyx sometimes abortively 2 or 3-lobed, and then the seed is erect. (Koch.)
8 C. ambrosioides L. Mexican Tea. Erect, sulcate, branched; lvs. short-petioled, ascending, oblong, the upper attenuate at each end, acutish, remotely sinuate-dentate or subentire, thin, puberulent, glandular beneath, light green, the upper lance-linear, very entire; rac. spike-like, dense-flowered, leafy; seed
• smooth and shining, obtuse-edged; fruit wholly inclosed. - Waysides, waste places. Plant yellowish green, pleasantly aromatic, 1 to 2f high. Jl., Aug. § Mex. etc.
9 C. anthelminticum L. Worm-seed. Erect, angular, subsimple; lvs. ovate-oblong, petiolate, acute, attenuate at base, deeply sinuate-serrate, the lower almost pinnatifid, thin, smoothish, glandular beneath, bright green; rac. spike-like, axillary, subsimple, dense-flowered, leafless, paniculate above; sty. mostly 3; seed smooth, shining, obtuse-margined; fruit wholly inclosed. - In light soils, pastures, and waste grounds, common south and west. Plant strongly aromatic, 1 to 3f high, with small branches (or none), forming a leafy panicle of leafless spikes. Jn. - Aug.
10 C. Botrys L. Oak of Jerusalem. Erect, sulcate-angled, much branched; lvs. long-petioled, ascending, oblong, obtuse, sinuate-subpinnatifid with obtuse lobes, glandular-pubescent, glaucous green, the floral bract-like; fls. cymous-pani-culate, in long ascending, raceme-like panicles; seed smooth, nearly globular. - Plant 1 to 2f high, branched from the base. Lvs. few. 1 to 2' long, petioles half as long. Fls. innumerable, minute, clammy, covering nearly the whole plant. Jn. - Aug. Strongly fragrant of turpentine.
4. ROUBIE'VA, Moq. (Named for G. J. Roubieu, a French botanist.) Calyx oblong-urceolate, 5-toothed, in fruit rugous and inclosing the utricle like a capsule; stamens 5; styles and stigmas 3; seed lenticular, vertical, embryo a complete ring. - A diffusely branched, pubescent herb, with alternate, multifid lvs. and small green fls. (Cheno-podium, L.)
R. multifida Moq. - Waste grounds, waysides about the city of N. Y. (Holton). A strongly-scented, prostrate herb, 1 to 2f long. Lvs. small, 1' less or more long, pinnatifid with oblong lobes. Fls. numerous, glomerate, axillary, sessile, in bracted, panicled racemes. Fruit nearly 1 ' long. § S. America.
5. BLI'TUM, Tourn. Blite. Calyx 3 to 5-parted, finally unchanged or becoming juicy and berry-like in fruit; stamens 1 to 5, with filiform filaments; styles 2, utricle compressed, inclosed in the calyx; seed vertical, embryo a complete ring. - Lvs. alternate, petiolate. Fls. glomerate.
§ Heads (glomerules) axillary, subspicate above. Cal. thickened in fruit. Stig. united.
Nos. 1, 2
§ Heads forming a dense, terminal spike. Calyx dry. Stigmas distinct...............
1 B. capitatum L. Strawberry Blite. Lvs. triangular-hastate, toothed; hds. in terminal, interrupted, leafless spikes; stam. 1 to 5; fr. consisting of the reddened flowers, appearing like strawberries, full of a purple juice, taste insipid; seed dull. - Va. to Arc. Circle. A weed-like plant growing in fields, and sometimes cultivated in gardens as a flower, or a culinary. Sts. purplish-striped, branching, 1 to 2f high. Heads of fls. sessile, near together, on the branches and summit of the stem. Jn. †
2 B. maritimum Nutt. Much branched, angular; lvs. lanceolate, attenuate at each extremity, incisely dentate; hds. axillary, sessile, spicate; cal. somewhat fleshy; stam. 1; seed shining. - A coarse, unsightly plant, in salt marshes, N. Y. to N. J. St. 1 to 2f high, very branching. Lvs. fleshy, with 2 or more large-teeth each side. Fls. very numerous and minute, becoming thickish in fruit. Seed much flattened. Aug.