Par? 1, 1916] CHENOPODIACEAE 49 
monoecious, in axillary glomerules; calyx 5-cleft; fruiting bracts panduriform, 3-4 mm. long, 
united below, not compressed, the terminal lobe green, entire, usually truncate, the margins 
irregularly and coarsely dentate, the sides bearing 2 or more irregular, obtusely dentate crests; 
seed 1.5 mim. long, the radicle superior. 
TYPE LocaLrry: Arizona, 
DistriBurion: In alkaline soil, southwestern South Dakota and Montana to northwestern 
New Mexico, northern Arizona, and Utah. 
X. Truncatae. Erect or procumbent annuals, densely furfuraceous. Leaves alternate, 
petiolate, or the uppermost sessile, the blades broadest at or near the base, entire or nearly so. 
Flowers monoecious, inaxillary glomerules. Fruiting bracts sessile or short-pedicellate, 2-3 mm. 
long, broadly cuneate, dentate at the truncate apex, the sides usually smooth. Radicle superior. 
28. Atriplex truncata (Torr.) A. Gray, Proc. Am. Acad. 8: 398. 
1872. 
Obione truncata Torr.; S. Wats. Bot. King’s Expl. 291. 1871. 
Atriplex truncata stricta A. Gray, Proc. Am. Acad. 8: 398. 1872, 
Erect annual, 2-10 dm. high, simple or rather sparsely branched, the branches slender or 
stout, obtusely angled, ascending or spreading, furfuraceous above, glabrate below, often tinged 
with red; leaves alternate, the upper sessile, the lower with short petioles; lower leaf-blades 
rounded-deltoid, deltoid-ovate, or rhombic, often subhastate, 1.5—4 em. long, obtuse or acute 
at the apex, mostly truncate or abruptly cuneate at the base, the blades of the upper leaves 
rounded-ovate to deltoid-oblong, acute to broadly rounded at the apex, often cordate and 
clasping, much smaller than the lower, all the blades entire or undulate, thin, grayish-furfura- 
ceous, especially beneath; flowers monoecious, the glomerules axillary, the uppermost mostly 
staminate but staminate flowers present also in the lower axils; calyx 3-5-cleft; fruiting bracts 
sessile or short-pedicellate, broadly cuneate, 2-3 mm. long, not compressed, united to the trun- 
cate or broadly rounded summit, this obtusely and shallowly 3-dentate, or the teeth rarely 
more numerous, the sides smooth or very shortly and obscurely tuberculate; seed 1.5 mm. long, 
the radicle superior. 
Tyree LOCALITY: On the Truckee River, Nevada. 
DIstRiBuTion: In alkaline soil, Wyoming to British Columbia, and southward to California 
and northwestern New Mexico. : 
ILLUSTRATION: Bull. U. S. Dep. Agr. Bot. 27: pl. 5, f. 3. 
29. Atriplex subdecumbens M. E. Jones, Proc. Calif. Acad. II. 5: 
716. 1895. 
Annual, much branched, the branches slender, 5—20 cm. long, procumbent, terete or nearly 
so, furfuraceous; leaves numerous, alternate, short-petiolate, the blades broadly oblong-ovate 
to ovate or oval, 0.7-1.5 cm. long, obtuse or acute at the apex, rounded or abruptly cuneate 
at the base, entire, thin, usually 3-nerved, copiously furfuraceous; flowers monoecious, both 
kinds in the same small axillary clusters, the glomerules present in nearly all the axils; fruiting 
bracts obovate or broadly cuneate, sessile, 2 mm. long, united to the apex, this green, obtusely 
denticulate, the teeth few, the sides smooth, nerved, furfuraceous; seed brown, 1 mm. long, 
the radicle superior. 
Type LvocaLity: Fish Lake, Utah. 
DISTRIBUTION: Known only from the type locality. 
XI. Wolfianae. Low annuals, furfuraceous throughout. Leaves alternate, sessile, the 
blades linear, entire. Flowers monoecious, in axillary glomerules. Fruiting bracts small, 
sessile or subsessile, cuneate, truncate and 3-dentate at the apex, the sides usually short- 
tuberculate. Radicle superior. 
30. Atriplex Wolfii S. Wats. Proc. Am. Acad. 9: 112. 1874. 
Annual, 1-2 dm. high, much branched throughout, the branches slender, ascending or 
spreading, terete, furfuraceous, often reddish; leaves alternate, numerous, sessile, the blades 
linear, or the lowest oblong-linear, 6-14 mm. long, obtuse or acutish, entire, furfuraceous; flowers 
