ParT 1, 1916] CHENOPODIACEAE 69 
94. Atriplex Nuttallii S. Wats. Proc. Am. Acad. 9: 116. 1874. 
Atriplex canescens Nutt. Gen. 1: 197, asto description. 1818. Not Calligonum canescens Pursh, 1814. 
Obione canescens Moq. Chenop. Enum. 74, as to description. 1840. , 
Atriplex Nuttallii utahensis M. E. Jones, Contr. West. Bot. 11: 19. 1903. 
Perennial, 2-6 dm. high, suffrutescent at the base and niuch branched, the stems erect 
or decumbent, terete, stramineous or grayish, furfuraceous, simple below, often branched 
above, the branches ascending; leaves numerous, alternate, usually short-petiolate, the blades 
oblong to oblanceolate-oblong or obovate, 2-4 cm. long, 5-11 mm. wide, entire, rounded at 
the apex or the upper obtuse, cuneate at the base, rather thick, green or grayish-green, closely 
furfuraceous; flowers dioecious, the yellow staminate glomerules in mostly dense, stout, naked 
or sparsely leafy, paniculate or simple spikes, the pistillate in few-flowered glomerules, these 
mostly axillary but sometimes forming dense naked spikes; calyx 5-cleft, sparsely furfuraceous ; 
fruiting bracts usually sessile, ovate to ovate-orbicular, 3-5 mm. Jong, indurate, united to 
above the middle, acute, irregularly dentate or laciniate-dentate, the terminal tooth not 
conspicuous, copiously muricate or tuberculate on the sides; seed reddish-brown, 2 mm. in 
diameter, the radicle superior. 
Type Locaity: On the denuded saline hills of the Missouri River, about 15 miles below the 
confluence of White River, South Dakota. 
DIsTRIBUTION: Alkaline plains and hillsides, Manitoba and Saskatchewan to northern Utah, 
Colorado, and western Nebraska. 
ILLUSTRATIONS: Britt. & Brown, Ill. Fl. f. 1384; ed. 2. f. 1701; Bull. U. S. Dep. Agr. Bot. 27: pl. 
6,f. 2, in part (i. e. the upper 2 rows). 
95. Atriplex buxifolia Rydb. Bull. Torrey Club 39: 311. 1912. 
Erect or decumbent shrub, 1.5-4 dm. high, fruticose below, much branched from the base, 
the branches mostly simple, terete, rather slender, grayish-furfuraceous; leaves alternate, the 
blades sessile, oval or oblong, 1-2 cm. long, 5-8 mm. wide, often with fascicles of smaller leaves 
in the axils, rounded or obtuse at the apex, obtuse at the base, entire, thick and firm, closely 
furfuraceous but green; flowers dioecious, the staminate in large glomerules in mostly simple, 
axillary or terminal, interrupted, naked spikes, the pistillate flowers in small axillary glomerules, 
the leaves of the pistillate inflorescence not reduced; calyx deeply 5-cleft; fruiting bracts 4-5 
mm. long, united to the middle, sessile or short-pedicellate, about as long as broad, becoming 
indurate, acutish, rather shallowly dentate, with few short, stout, often flattened appendages 
on the back, or these rarely wanting; seed filling the cavity. 
Tyee Locatity: Dayton, Sheridan County, Wyoming. 
Distrisution: Dry plains, eastern Wyoming. 
X XVII. Phyllostegiae. Low, bright-green, glabrate annuals. Leaves alternate, petio- 
late, the blades broad, entire. Flowers monoecious, or the plants wholly pistillate. Fruit- 
ing bracts pedicellate, large, united nearly to the apex, entire or laciniate, the sides bearing 
numerous or few linear green appendages. Radicle superior. 
96. Atriplex phyllostegia (Torr.) S. Wats. Proc. Am. Acad. 9: 108. 
1874. 
Obione phyllostegia Torr.; S. Wats. Bot. King’s Expl. 291. 1871. 
Atriplex Draconis M. E. Jones, Contr. West. Bot. 8: 40. 1898. 
Endolepis phyllostegia Rydb. Bull. Torrey Club 39: 312. 1912. 
Erect annual, 2-6 dm. high, much branched, the branches stout, terete, ascending or 
spreading, sparsely furfuraceous or glabrate; leaves alternate, the slender petioles equaling or 
shorter than the blades, the blades broadly ovate, rhombic-ovate, or deltoid-hastate, 1.5-5 
em. long, acute or acuminate, truncate or abruptly cuneate at the base, entire, thin, green, 
sparsely furfuraceous or glabrous; flowers monoecious, or the plants wholly pistillate, the 
staminate glomerules large, axillary, or in naked terminal spikes, the pistillate flowers fascicled 
in the axils or in terminal, sparsely leafy spikes; calyx 5-cleft; fruiting bracts on pedicels 3-16 
mm. long, or subsessile, 5-20 mm. long, including the terminal lobe, united nearly to the apex, 
very irregular in outline, lanceolate or lance-oblong, entire or deeply laciniate, the apex oblong 
