Part 1, 1916] CHENOPODIACEAE 53 
blades mostly entire, thin, sparsely farinose, the leaves appearing green or grayish-green; 
flowers monoecious, the large staminate glomerules in dense or interrupted, narrowly panicu- 
late or rarely simple, naked spikes; calyx deeply 5-cleft; pistillate flowers in few-flowered 
axillary clusters; fruiting bracts cuneate-orbicular, 2-3 mm. long, united below, the herbaceous 
margins deeply dentate, the terminal tooth usually longer than the lateral ones, the sides usually 
conspicuously tuberculate; seed 1-1.5 mm. long, brown, the radicle superior. 
TYPE LocaLity: Poso Creek, California. 
_ DISTRIBUTION: In alkaline soil, central California and western Nevada to northern Lower 
California. 
ILLUSTRATION: Pacif. R. R. Rep. 53: pl. 14. 
42. Atriplex Wrightii S. Wats. Proc. Am. Acad. 9: 113. 1874. 
veer bi aad radiata Torr. Bot. Mex. Bound. Surv. 183,in part. 1859. Not Obione radiata Torr. 
Albriplex radiata Coult. Contr. U. S. Nat. Herb. 2: 368. 1894. 
Erect or ascending annual, 1.5-8 dm. high, sparsely branched, or simple at the base, the 
branches stout, obtusely angled, furfuraceous when young, usually glabrate in age; leaves 
numerous, alternate, sessile or short-petiolate, the blades linear to oblong, elliptic, or rarely 
obovate, 1.5—7.5 cm. long, 0.3-2.5 cm. wide, rounded to acute at the apex, mucronate, cuneate to 
long-attenuate at the base, coarsely sinuate-dentate or repand-dentate, or many of the blades 
entire, thin, densely and closely white-farinose beneath, usually green and glabrous on the 
upper surface, at least in age; flowers monoecious, the staminate glomerules small, in slender, 
usually dense, naked, narrowly paniculate spikes, the panicles 6-30 cm. long; calyx 5-cleft: 
pistillate flowers in few-flowered axillary clusters; fruiting bracts short-pedicellate, cuneate- 
orbicular or broadly cuneate, 2-2.5 mm. long, united below, compressed, the apex rounded, 
acutely 5-dentate, the sides 3-nerved, usually not appendaged, rarely obscurely tuberculate; 
seed 1 mm. long, pale-brown, the radicle superior. 
TYPE LOCALITY: New Mexico. . : 
DistrRisution: In alkaline soil, southwestern New Mexico, Arizona, and northern Sonora. 
43. Atriplex linifolia Humb. & Bonpl.; Willd. Sp. Pl. 4: 958. 1806. 
Alriplex polygama Sessé; Lag. Gen. & Sp. Nov. 12. 1816. 
Obione salicifolia Moq. Chenop. Enum. 74. 1840. 
Obione linifolia Moq. Chenop. Enum. 74. 1840. 
Chenopodium angustifolium Pavon; Moq. Chenop. Enum. 74, as synonym. 1840. 
Obione polygama Mog. in DC. Prodr. 13?: 114. 1849. 
Erect or decumbent annual or perennial (?), branched from the base, the stems simple or 
branched, 1.5-7 dm. long, stout or slender, obtusely angled, furfuraceous, glabrate in age, often 
tinged with red; leaves numerous, alternate, sessile, the blades linear, narrowly oblong, or 
linear-oblanceolate, 0.6-2.5 cm. long, 1-5 mm. broad, obtuse or acute, rather thin, entire, or 
the larger ones with a few spreading teeth, densely and closely white-furfuraceous beneath, 
grayish-green and glabrate on the upper surface; flowers monoecious or subdioecious, the 
staminate glomerules in slender, dense or interrupted, loosely paniculate, naked, terminal spikes, 
the pistillate flowers in small axillary fascicles, the leaves subtending them somewhat re- 
duced; calyx 5-cleft; anthers often tinged with red; fruiting bracts sessile, orbicular or cuneate- 
orbicular, 2-2.5 mm. long, united to the middle, the herbaceous margins obtusely dentate, 
the sides irregularly tuberculate or with 2 dentate crests; seed pale-brown, 1.5 mm. long, the 
radicle superior. 
TYPE LOCALITY: Mexico. . : 
DISTRIBUTION: In alkaline soil, Durango to central Mexico. 
44. Atriplex muricata Humb. & Bonpl.; Willd. Sp. Pl. 4: 959. 1806. 
Atriplex parvifolia H. B. K. Nov. Gen. & Sp. 2: 192. 1817. 
Obione Kunthiana Moq. Chenop. Enum. 72. 1840. 
Obione parvifolia Mog. Chenop. Enum. 73. 1840. . 
Obione muricata Mog. in DC. Prodr. 13?: 109. 1849. Not O. muricata Gaertn. 1791. 
Prostrate or procumbent annual, much branched, the branches stout, obtusely angled, 
1-5 dm. long, furfuraceous, or glabrate in age, often tinged with red; leaves numerous, alter- 
