CHKNOPODIUM CHENOPODIACE^ 593 



also in the Eastern States and Europe. 



C. leptophyllum Nutt, Moq. in DC. Prodr. xiii, 71 T Stem, slender 

 usually erect 6-30 inches high branched, mealy above: lea vesilinear to oblong, 

 white-mealy beneath, green above, acute or acuminate, or the lower obtuse, 

 entire or the lower sometimes toothed, short-petiolecl, 6-18 lines long, 1-3- 

 nerved: flowers in small dense clusters in dense or interrupted axillary and 

 terminal simple or branched spikes: calyx about half a line broad, its segments 

 strongly keeled and nearly covering the fruit: seed not firmly attached to 

 the pericarp. On dry hillsides. Brit. Columbia to Calif ornia and the. 

 Great Lakes. 



2 BOTRYOIS Moq. in DC. Prodr. xiii, 272. Annuals, not 

 mealy, more or less glandular-pubescent, aromatic. Seeds very 

 small, not exceeding the dry calyx, often vertical: embryo curved. 



C. Botrys L. Sp. 219. Glandular-pubescent and viscid throughout, 

 strongly-scented, of en red or purplish: stem slender, erect, simple to much 

 branched, 6-20 inches high: leaves ovate or oblong, deeply and usually irreg- 

 nlarly lobed, acute or obtuse at the apex, petioled 6-20 lines long, or the up- 

 per ones much smaller, the lobes 'mostly obtuse and dentate: flowers very 

 small, in numerous loose axillary cymose panicles mostly longer than the 

 leaves: calyx 3-5 -parted, the segments lanceolate, acute, thin, very pubes- 

 cent, rather longer than the utricle: seed firmly attached to the pericarp. 

 On sandy bars and banks along streams, Oregon to California and across the 

 Continent: also in Europe. 



C. ANTHELMINTICUM L. Sp. 220. Glabrous or slightly glandular, rather 

 dark green, strong-scented: stem much branched, ascending or erect, leafy, 2- 

 3 feet high: leaves lanceolate or ovate-lanceolate, usually acuminate at the 

 apex, narrowed at base, slender-petioled, coarsely dentate or incised. 2-5 

 inches long, the uppermost commonly linear- lanceolate and entire: flowers in 

 iinear, usually bractless panicled spikes, or the lower spikes leafy-bracted 

 In waste places, not common: naturalized from Europe. 



3 BLITE^: Moq. 1. c. Glabrous annuals. Flowers in 

 crowded clusters, axillary or in spikes. Calyx becoming some- 

 what fleshy in fruit and often colored. Seeds subglobose. 



C. rubrum L. Sp. 218. Glabrous and somewhat fleshy, not mealy : 

 stem erect, leafy, 1-3 feet high, often much branched: leaves thick 1-4 inch- 

 es long, rhombic ovate or rhombic -lanceolate, narrowed at base, coarsely sin- 

 uate dentate or the upper entire, petioled: flowers in erect compound leafy- 

 bracted axillary and terminal spikes: calyx 3-5-parted its segments slightly 

 fleshy, red, not keeled obtuse about as long as the utricle: stamens 1 or 2: seed 

 separating from the pericarp. In saline or alkaline soil, Brit. Columbia to 

 California and the Atlantic States also in Europe and Asia. 



C. humilis Hook. Fl. ii, 127. Glabrous annual: stem prostrate or 

 ascending, 1-6 inches long: leaves ovate to lanceolate, 6-12 lines long, obtuse 

 to acute, often hastate, rarely toothed, attenuate below to a petiole: flowers 

 in short axillary and terminal spikes or clusters: calyx 3-5-parted, its seg- 

 mencs slightly fleshy, usually green, not keeled: obtuse; about as long as the 

 utricle: stamens one or two: stigmas short: seed horizontal, shining, rather 

 sharp-edged. On muddy banks and flats. Washington and Oregon to 

 Nevada and Colorado. 



4 BLITUM L. Sp. 2. 

 Annual herbs with alternate petioled rather light green leaves 



