CHENOPODIUM CHENOPODIACE A 593 
also in the Eastern States and Europe. 
C. leptophyllum Nutt, Mog. in DC. Prodr. xiii, 71, Stem. slender 
usually erect 6-30 inches high branched, mealy above: leaves;linear to oblong, 
white-mealy beneath, green above, acute or acuminate, or the lower obtuse, 
entire or the lower sometimes toothed, short-petioled, 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 California and the. 
Great Lakes. 
_ -§ 2 Borryors Mog. 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, ofen 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-lauceolate, 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 
linear, usually bractless panicled spikes, or the lower spikes leafy-bracted 
In waste places, not common: naturalized from Europe. 
§ 3 Brtrez Mog. |. c. Glabrous annuals. Flowers in 
crowded clusters, axillary or in spikes. Calyx becoming some- 
what fleshy in fruit and often colored. Seeds subglobuse. 
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 
