18 NORTH AMERICAN FLORA [VoLrumE 21 
lobes obovate-orbicular, bright-green, white-margined, slightly carinate; pericarp free; seed 
horizontal, 1.3 mm. broad, black, smooth and shining, the margin obtuse. 
TYPE LOCALITY: Carolina. 
DISTRIBUTION: In woods or waste ground, Maine to Nebraska, and southward to Georgia 
and Texas. 
ILLUSTRATIONS: Britt. & Brown, Ill. Fl. f. 1363; ed. 2. f. 1683; G. T. Stevens, Ill. Guide 91. 
VII. Fremontiana. Plants slender and tall or rarely low and stout, glabrate, or copiously 
farinose with whitish inflated trichomes. Leaf-blades usually as broad as long, the lower 
ones conspicuously hastate or 3-lobed, otherwise usually entire. Glomerules of flowers loosely 
or densely spicate or rarely cymose. Calyx-lobes carinate, closely investing the fruit or rarely 
erect. Pericarp free or adherent. Seed horizontal. 
19. Chenopodium incanum (S. Wats.) A. Heller, 
Pl. World 1: 23. 1897. 
Chenopodium Fremonti incanum S. Wats. Proc. Am. Acad. 9: 94, 1874. 
Erect annual, 1-5 dm. high, much branched throughout, the branches very stout, spreading 
or ascending, angled and striate, densely farinose; petioles stout, two thirds as long as the 
blades or shorter; leaf-blades triangular-rhombic to rhombic-orbicular, 1-3 cm. long and often 
fully as wide, obtuse or rounded and apiculate at the apex, rounded to broadly cuneate at the 
base, hastately lobed, with rounded or obtuse lobes, very thick, densely white-farinose, or often 
glabrate on the upper surface; flowers in large dense glomerules arranged in dense stout crowded 
paniculate spikes, the inflorescence leafy or naked, the leaves often oblong and entire; calyx 
densely farinose, the lobes carinate; stamens often exserted; pericarp free; seed horizontal, 
0.8-1 mm. broad, smooth, black, shining, the margin obtuse. 
TYPE LOCALITY: Near Santa Fe, New Mexico. 
Distrreurion: Dry plains and hillsides, Nebraska to Utah and northern Mexico; adventive in 
Missouri and Maine. 
InLustration: Britt. & Brown, Ill. Fl. ed. 2. f. 1678. 
20. Chenopodium Pringlei Standley, sp. nov. 
Erect annual, 4-6 dm. high, simple below, branched above, the main axis stout, the 
branches slender, ascending, sparsely farinose; petioles slender, half as long as the blades or 
longer, often equaling them; leaf-blades broadly triangular, 3-4.5 cm. long, the upper ones 
shorter, acute or acutish, truncate or broadly cuneate at the base, coarsely and irregularly 
sinuate-dentate or shallowly repand-dentate, the basal ones often larger, making the blades 
subhastate, thin, yellowish-green, very finely and sparsely farinose, the blades of the upper 
leaves sometimes subentire or acutely hastate, often acuminate; flowers in small glomerules, 
these in short, interrupted, more or less flexuous, paniculate spikes; calyx copiously farinose, 
the lobes oval-ovate to oblong, obtuse or rounded, almost completely enclosing the fruit; peri- 
carp free; seed horizontal, 1 mm. broad. 
Type collected on hills near Dubl4n, Hidalgo, Mexico, altitude 2040 meters, September 21, 
1901, C. G. Pringle 9283 (U.S. Nat. Herb. xo. 396403). 
DrsTRIBUTION: Hillsides, Hidalgo. 
21. Chenopodium Fremonti S. Wats. Bot. King’s Expl. 287. 1871. 
Botrys Fremonti Lunell, Am. Midl. Nat. 4: 305. 1916. 
Erect or ascending annual, 3-10 dm. high, usually much branched throughout, the branches 
very slender, ascending, often flexuous, sparsely farinose or glabrous; petioles slender, half as 
long as the blades or longer, often exceeding them; leaf-blades broadly triangular-hastate, 1.5-6 
em. long and of about the same breadth, rounded at the apex or rarely acute, truncate to 
broadly cuneate at the base, with usually broadly rounded, rarely acutish basal lobes, 
very thin, bright-green, glabrous or nearly so on the upper surface, slightly paler beneath with 
a very fine sparse farinose pubescence, the blades of the inflorescence smaller and often entire; 
flowers in small glomerules, these in slender or stout, dense or interrupted, usually flexuous, 
paniculate spikes; calyx usually rather sparsely farinose, deeply cleft, the lobes oval to rounded- 
