37 FLORA. 



4. Chenopodium polyspermum L. MANY-SEEDED GOOSEFOOT. (I. F. f. 

 1362.) Animal, glabrous, not mealy ; stem commonly much branched, striate, 

 1.5-9 dm. high. Leaves oblong, elliptic or ovate, slender-petioled, entire, thin, 

 obtuse, 2-8 cm. long, flowers in loose axillary and terminal panicles; calyx less than 

 2 mm. wide, its segments oblong, not keeled, not completely covering the fruit ; 

 seed firmly attached to the pericarp, horizontal. In waste places and ballast, 

 Mass, to N. J. Adv. from Europe. July -Sept. 



5. Cheaop odium Boscinum Moq. Bosc's GOOSEFOOT. (I. F. f. 1363.) 

 Annual, light green; stem slender, 3-10 dm. tall, the branches very slender. Leaves 

 thin, lanceolate or oblong-lanceolate, acute or acuminate at the apex, narrowed at 

 the base, slender-petioled, 2-6 cm. long, the lower sinuate-dentate or nearly all of 

 them entire ; flowers in slender spikes ; calyx-segments broadly oblong, obtuse ; 

 herbaceous, nearly covering the utricle; seed horizontal, readily separating from 

 the pericarp, black, shining. In woods and thickets, N. V. and N. J. to Ind., 

 Minn., N. Car. and Tex. July -Sept. 



6. Chsnopodium Fremontii S. Wats. FREMONT'S GOOSEFOOT. (I. F. f. 

 1364.) Annual, light green ; stem erect, grooved, branched, 3-10 dm. tall. 

 Leaves thin, broadly triangular-hastate, sinuate-dentate or the upper entire, mostly 

 obtuse at the apex, truncate or abruptly narrowed at the base, slender-petioled, 

 2-10 cm. long and nearly as wide, the uppermost sometimes very small, oblong or 

 lanceolate and acute ; spikes slender ; calyx I mm. wide, its segments nearly 

 enclosing the utricle; pericarp easily separable from the seed; seed horizontal, 

 shining. In woods and thickets, S. Dak. to Mont., Nev. and N. Mex. July-Sept. 



Chenopodium Frem6ntii incknum S. Wats. Low; stems stout and much branched, 

 the branches and lower surfaces of the leaves densely white-mealy ; leaves 6-25 mm. 

 lon^. Range of the type. Probably a distinct species. 



7. Chenopodiun Berlandiari Moq. BERLANDIER'S GOOSEFOOT. (I. F. f. 

 1365.) Annual; ste.n erect, commonly much branched, 4-10 dm. tall, the branches 

 ascending. L^.ives lanceolate, oblong or rhombic-lanceolate, slender-petioled, 

 thin, so.ne or all of the.n cuspidate-acuminate at the apex or bristle- tipped, nar- 

 rowed at the base, 1-4 cm. long; flowers in rather loose panicled spikes; calyx nearly 

 2 mm. broad, its segments keeled, enclosing the utricle; pericarp firmly attached 

 to the horizontal seed. In dry soil, southern Mo. to Tex. and in Fla. June-Sept. 



8. Chenopoiiun urbicu.n L. UPRIGHT OR CITY GOOSEFOOT. (I. F. f. 

 1366.) Annual; stem commonly stout, erect, channeled, 3-9 dm. tall. Leaves 

 hastate or triangular ovate, acute at the apex, truncate subcordate or abruptly nar- 

 rowed at the base, stout-petioled, coarsely and irregularly dentate or the uppermost 

 entire, the larger 7-13 cm. long; spikes in erect panicles, the upper longer than the 

 leaves; calyx I mm. broad, its segments obloag, obtuse, not entirely enclosing the 

 fruit; seed horizontal, firmly attached to the pericarp, its margins rounded. In 

 waste places, N. S. and Ont. to S. N. Y. Adventive from Europe. June-Sept. 



?. Chenopodium murals L. NETTLE-LEAVED GOOSEFOOT. SOWBANE. 

 . f. 1367.) Annual, somewhat scurfy above; stem 3-8 dm. high, leafy to the 

 summit. Leaves rhombic-ovate, thin, bright green, acute or acuminate, sharply 

 and coarsely sinuite dentate, cuneate or subtruncate at the base, slender-petioled, 

 5-10 cm. long; flowers in loose axillary panicles, often not longer than the petioles; 

 calyx-segments not entirely enclosing the utricle ; seed sharp-edged, horizontal, 

 firmly attached to the pericarp. In waste places, Me. to Mich., Br. Col, Fla. and 

 Mex. June-Sept. 



10. Chenopodium h^bridum L. MAPLE-LEAVED GOOSEFOOT. (I. F. f. 

 1368.) Annual, sometimes more or less scurfy; stem slender, erect, 6-13 dm. tall. 

 Leaves ovate or rhombic-ovate, long-acuminate at the apex, truncate rounded or 

 subcordate at the base, thin, slender-petioled, sharply dentate with 1-4 large acute 

 teeth on each side, or the upper lanceolate and entire, the lower 1-2 dm. long; 

 flowers in large panicles; calyx about 2 mm. broad, its segments oblong, slightly 

 keeled, incompletely covering the fruit; seed horizontal, sharp edged, firmly at 

 tached to the peric.irp. In woods and thickets, sometimes in waste places, Quebec 

 to the Northwest Terr., Br. Col., N. Y., Ky. and N. Mex. Also in Europe. 

 July-Sept. 



11. Chenopodium rubrum L. REP GOOSEFOOT. (1. F. f. 1369.) Annual, ' 



