(GOOSEFOOT FAMILY.) 



Synopsis. 



TRIBE I. C YCIiOLiOBE JE. Embryo curved like a ring around the albumen. 



1. CHENOPODIUM. Calyx 3 - 6-parted, the lobes commonly keeled in fruit. Seed horizontal, 



rarely vertical. 



2. ATRIPLEX. Flowers monoecious. Calyx of the sterile flowers 5-parted, of the fertile 



flower none. Ovary enclosed in a pair of separate at length coriaceous bracts. Radicle 

 inferior- 



3. OBIONE. Bracts of the fertile flower united. Radicle superior. 



4. SALICORNIA. Flowers 3 together, lodged in excavations of the thickened joints of the 



leafless stem. 



TRIBE II. SPIKOLOISKJK. Embryo spirally coiled, with little or no albumen. 

 Seed horizontal. 



5. CHENOPODINA. Calyx 5 parted, not keeled. Leaves terete, fleshy. 



6. SALSOLA. Calyx at length transversely winged. Leaves spiny. 



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. Utricle 

 depressed, enclosed in the globose or 5-angled calyx. Seed horizontal (rarelv 

 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, Moq. Stem erect, with angular branches ; leaves 

 small, spreading, lanceolate-linear, very acute, entire, or the lower ones some- 

 Avhat toothed, more or less mealy and whitened beneath ; spikes loose, leafy ; 

 seed acute on the margins, slightly roughened, shining, enclosed in the acute- 

 angled calyx. Carolina, Bosc. Stem slender, 2 high. Leaves 5" - 1 2" Ion-, 

 on petioles 2" - 3" long. Calyx -lobes elliptical-ovate, acutish. 



2. C. album., L. Stem erect, branched, slightly furrowed ', leaves ascend- 

 ing, rhombic-ovate, acute at the base, toothed ; the upper ones lanceolate and 

 entire, more or less coated with a white powder spikes panicled ; the small 

 clusters scattered or crowded, nearly leafless ; seed enclosed in the 5-angled 

 calyx, acute on the margins, smooth and shining. Varies (C. viride, L.) with 

 nearly entire and less mealy leaves, and the larger clusters more scattered. 

 Cultivated grounds, Florida, and northward. July- Sept. Stem 2 -6 high. 

 Petioles long and slender. 



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

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

 slender, spreading, corymbose, scarcely exceeding the leaves ; seed not shining, 

 acute on the margins, nearly enclosed in the slightly angled calyx. Waste 

 places, Florida, and northward. Stem 6'- 18' high. 



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

 tifid-lobed, with the lobes obtuse and glandular-pubescent, the upper ones 

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



