22 NORTH AMERICAN FLORA [VoLuME 21 
31. Chenopodium ferulatum Lunell, Am. Midl. Nat. 3: Contents 4. 
1914. 
Chenopodium virgatum, Lunell, Am. Midl. Nat. 3: 345. 1914. Not C. virvgatum Thunb. 1815. 
Chenopodium virgatum junceum Lunell, Am. Midl. Nat. 3:345. 1914. 
Chenopodium ferulatum junceum Tainell, Am. Midl. Nat. 3: Contents 4. 1914. 
Botrys ferulata Lunell, Am. Midi. Nat. 4: 306. 1916. . 
Erect annual, 4-12 dm. high, simple below, sparsely branched above, the branches stout, 
strongly ascending, obtusely angled, striate, pale-green, glabrous or sparsely farinose; petioles 
slender, one half to two thirds as long as the blades; leaf-blades oblong-rhombic to ovate- 
rhombic, 2.3-4 cm. long, obtuse or acutish, cuneate or broadly cuneate at the base, usually 
shallowly 3-lobed, rather finely sinuate-serrate, thin, yellowish-green above and glabrate, 
densely and finely farinose beneath when young, glabrate in age, the blades of the inflorescence 
smaller, lanceolate to linear, long-acuminate, mucronulate, usually entire; flowers in rather 
large glomerules, these in very dense, stout, mostly erect, axillary and racemose or paniculate 
spikes, the inflorescence narrow, dense, sparsely leafy; calyx rather sparsely farinose, deeply 
cleft, the lobes rounded-ovate or broadly ovate, greenish-white or yellowish, thin, carinate, 
erect or spreading in age and exposing the fruit; pericarp adherent; seed horizontal, 1.3 mm. 
wide, puncticulate, black, shining, the margin obtuse. 
ir LOCALITY: On the banks of the Missouri River, near Bismarck, Burleigh County, North 
Dakota. : 
DISTRIBUTION: Southern North Dakota and western South Dakota. 
32. Chenopodium dacoticum Standley, sp. nov. 
Ill-scented erect annual, 1.5-6 dm. high, branched throughout, the branches ascending, 
stout, subterete, striate, densely and coarsely farinose when young, often glabrate in age; 
petioles rather stout, one half to two thirds as long as the blades; leaf-blades broadly rhombic 
to ovate-orbicular, 1.5—4 cm. long, broadly rounded at the apex, apiculate, broadly cuneate 
to rounded at the base, shallowly sinuate-dentate or sinuate, thick, pale yellowish-green, 
densely and very coarsely farinose on both surfaces, sometimes glabrate above, the blades 
of the inflorescence smaller, ovate to oval or oblong, acute, cuspidate; flowers in rather large 
glomerules, these in stout, dense, short, loosely paniculate or cymose spikes; calyx densely 
farinose, deeply cleft, the lobes rounded-ovate, completely enclosing the fruit; pericarp ad- 
herent; seed horizontal, very coarsely punctate, dull, nearly black, the margin rounded. 
Type collected in badlands at Cedar Pass, Stanley County, South Dakota, July 24, 1913, W. H. 
Over 6175 (U.S. Nat. Herb. no. 693399). 
DrstRIBUTION: In dry soil, western South Dakota. 
33. Chenopodium petiolare H. B. K. Nov. Gen. & Sp. 2: 191. 
1817. 
Chenopodium petiolare sinuatum Murr, Bull. Herb. Boiss. II. 4: 994. 1904. 
Erect annual, 4-10 dm. high, sparsely branched, the branches stout, ascending or some- 
what spreading, obtusely angled or subterete, striate, pale-green or yellowish, glabrous or 
nearly so; petioles slender, usually equaling or even exceeding the blades; leaf-blades rhombic 
or ovate-rhombic, 2.5-7 em. long, conspicuously longer than broad, obtuse or rounded at the 
apex, apiculate, broadly cuneate to rounded at the base, usually shallowly 3-lobed, irregularly 
and coarsely sinuate, sinuate-dentate, or sinuate-serrate, with commonly obtuse teeth, pale 
yellowish-green, glabrate on the upper surface, sparsely or densely and finely farinose beneath, 
the upper blades smaller, ovate to oblong, usually conspicuously hastate, the lobes acute or 
acutish, the uppermost blades often entire; flowers in small glomerules, these in dense, slender 
or stout, paniculate spikes, the inflorescence narrow, yellowish, sparsely leafy; calyx densely 
farinose, deeply cleft, the lobes carinate, completely enclosing the fruit; pericarp adherent, 
seed horizontal, 1 mm. broad, finely puncticulate, nearly black, dull, the margin rounded. 
'vPE LOCALITY: Peru. 
DIstRIBUTION: In dry soil, western Kansas.to California and northern Mexico; also in Chile 
and Peru; adventive in Europe. 
