37 FLORA. 



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

 1362.) Annual, 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. Chenopodium Boscianum 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. Y. and N. J. to Ind., 

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



6. Chenopodium 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. 

 long. Range of the type. Probably a distinct species. 



7. Chenopodium Berlandieri Moq. BERLANDIER'S GOOSEFOOT. (I. F. f. 

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

 ascending. Leaves lanceolate, oblong or rhombic- lanceolate, slender-petioled, 

 thin, some or all of them 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. Chenopodium urbicum 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 oblong, 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. 



9. Chenopodium murale L. NETTLE-LEAVED GOOSEFOOT. SOWBANE. 

 (I. F. 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 sinuate-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 hy'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 pericarp. 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. 



XI. Chenopodium rubrum L. RED GOOSEFOOT. (I. F. f. 1369.) Annual, 



