404 CHENOPODIACE^;. (GOOSEFOOT FAMILY.) 



1. CHENOPODIUM, L. PIGWEED, GOOSEFOOT. 



Calyx 5- (rarely 3-4-) parted, bractless, the lobes mostly keeled. Stamens 

 5, the filaments filiform. Styles 2-3, distinct, or united at the base. Utri- 

 cle depressed, enclosed in the globose or 5-augled calyx. Seed horizontal 

 (rarely vertical), lenticular. Embryo forming a more or less perfect ring 

 around the copious mealy albumen. Glandular or powdery-coated herbs, 

 with alternate leaves, and clusters of small greenish flowers disposed in 

 panicled spikes. 



* Annuals. 



1. C. Boscianum, Moquin. Stem erect, with slender brandies ; leaves 

 oblong to lanceolate-linear, entire, or the lower somewhat toothed, more or 

 less mealy and whitened beneath; spikes very slender ; clusters few-flowered; 

 seed slightly roughened, shining, enclosed in the acute-angled calyx. Waste 

 places, North Carolina, and westward. Stem slender, 2 high. Leaves 1'- 

 2' long. 



2. C. album, L. Stem erect, branched ; leaves rhombic-ovate, toothed, 

 the upper lanceolate and entire ; spikes panicled ; seed enclosed in the 5- 

 angled calyx, smooth and shining. Varies (C viricle, L.) with nearly entire 

 and less mealy leaves, and the larger clusters more scattered. Cultivated 

 grounds. July - Sept. Stem 2 - 6 high. Petioles long and slender. 



3. C. murale, L. Stem ascending, branched ; leaves loug-petioled, ovate- 

 rhombic, acute, unequally and sharply toothed, bright green on both sides ; 

 spikes slender, spreading, corymbose, scarcely exceeding the leaves ; seed dull, 

 nearly enclosed in the slightly angled calyx. Waste places. Stem 6'- 18' 

 high. 



4. C. Botrys, L. Stem erect, branched ; leaves oblong, somewhat piu- 

 natifid-lobed, with the lobes obtuse, glandular-pubescent, the upper minute ; 

 racemes numerous, axillary, spreading, cymose; seeds with rounded margins, 

 not wholly included in the open and even calyx. Waste places. Plant 

 aromatic, 6' - 1 2' high. 



* * Perennial. 



5. C. Anthelminticum, L. (WORMSEED.) Stem stout, erect, 

 branching; leaves oblong or lanceolate, acute at each end, sharply toothed; 

 flowers in narrow panicles terminating the branches ; seeds with obtuse mar- 

 gins, smooth and shining, included in the even calyx. Waste grounds. 

 Stem 2 -3 high. 



2. ATRIPLEX, L. ORACHE. 



Flowers monoecious or dioscious, either similar to those of Chenopodium, or 

 the fertile flower destitute of a calyx, and enclosed in two ovate or rhombic 

 separate or partially united bracts. Seed vertical, lenticular. Embryo form- 

 ing a ring around the copious mealy albumen. Radicle inferior Herbs, 

 commonly coated with scurfy or silvery scales. Leaves alternate or opposite, 

 oftener hastate or angled. Flowers in dense spikes. 



1. A. hastata, L Stem angled, diffusely branched ; leaves petioled, 

 commonly nearly opposite, hastate or triangular, somewhat toothed, and, like 



