612 ORDER 105. CHENOPODIACE^E. 



* TR. SALICORN. Inflor. anomalous. Fls. imbedded. St. jointed, (leafless) SALICORTTIA. 9 



* TUIUK SI*INACIE^E. Inflor. normal. Fls. of two sorts. St. continuous. Lvs. broad, (a) 



a Fruit enclosed in a hardened calyx without bracts. Cultivated SPINACIA. 8 



a Fruit naked (no calyx) between two united bracts. Leaves oval OBIONK 1 



a Fruit naked (no calyx) between two subdistinct bracts. Lvs. triangular.ATKipLEX. 6 



* TRIBE CIIENOPODIEJE. Inflor. normal. Fls. perfect and alike. St. contin. Lvs. broad, (c) 



C Seed vertical. Pericarp thin, smooth, mostly in a fleshy calyx BLITUM. 5 



C Seed vertical. Pericarp thin, glandular, in a wrinkled calyx ROUBIEYA. 4 



C Seed horizontal. Pericarp thin, in a plain, unbordered calyx CHENOPODIUII. 3 



C Seed horizontal. Pericarp thin, in a calyx bordered all around CYCLOLOMA. 2 



C Seed horizontal. Pericarp thick and hard, calyx ribbed BETA. 1 



1. BETA, Tourn. BEET. (Celtic belt, red, the usual color of the 

 Beet-root.) Calyx urceolate, 5-cleft, persistent, finally indurated at base ; 

 stamens 5, with no staminodia ; ovary depressed, half inferior ; stigmas 

 2 ; utricle with a thickish, hardened, depressed pericarp enclosed in 

 the calyx; seed horizontal. Herbs with fleshy roots, furrowed stems, 

 alternate Ivs. and greenish, spicate fls. 



B. vulgaris L. Lvs. acute, glabrous, undulate or entire, green or purplish, 

 the lower ovate-oblong, attenuate at base into a long petiole, upper subsessile, 

 oblong ; fls. greenish-white, in sessile glomerules of 2 to 4 forming slender spikes 

 which are arranged in large, somewhat leafy panicles. (g) Fields and gardens, 

 everywhere cultivated. Kt. mostly deep red. S. Eur. This useful culinary, by 

 long culture has run into many varieties, distinguished chiefly by the color and 

 quality of the nutritious root. 



(3. CICLA. SCARCITY. Root cylindraceous, rather slender, whitish ; Ivs. some- 

 what rough or hispid, with very thick veins ; fls. 3 together. 



7. RAP A. TURNIP BEET. Root short and thick, sweet and juicy, white or red. 



6. M ANGEL- WURTZEL. Root very large, mostly white. Cultivated for stock. 



2. CYCLOLCTMA, Moquin. (Gr. icvAo?, a circle, Aw/zo, border; 

 referring to the appendage of the calyx.) Calyx urceolate, 5-cleft, lobes 

 strongly keeled, persistent, finally appendaged outside with a circular, 

 membranous, horizontal border or crown; stamens 5; styles 3; utricle 

 depressed, enclosed in the transversely winged calyx. () Herbs with 

 furrowed stems, alternate, petiolate, lobed Ivs., and a spreading panicle 

 of small sessile fls. 



C. platyphyllum Moq. Sandy banks of the Miss.. 111. (opposite St. Louis) and 

 westward. St. wide-branched, ascending 1 to 2f from a prostrate base, white- 

 downy above. Lvs. 2' long more or less, oblong-lanceolate, petiolate, sinuate- 

 toothed or lobed, lobes sharply mucronate. Fls. less than 1" long, 1 to 3-glom- 

 erate. Panicle leafless. Crown scarious. Seed black. Jl., Aug. 



3. CHENOPO'DIUM, Tourn. (Gr. #T/V, a goose, Trovg, foot; from 

 the resemblance of the leaves.) Calyx bractless, 5-cleft, lobes often 

 keeled, never appendaged, more or less enclosing the fruit ; stamens 5 ; 

 styles 2 ; utricle depressed, membranous, seed mostly horizontal, lentic- 

 ular. Herbs often glaucous or glandular, with alternate, often rhombic 



leaves, and the minute fls. glomerate in panicled spikes. 



S Plants smooth, never glandular, ill-scented. Embryo a complete ring (*). 



* Herbage green, rarely purplish, not glaucous or mealy (a). 



a Leaves entire, ovate-oblong on slender petioles JNo. 1 



a Leaves toothed or lobed, petiolate Wos. 24 



* Herbage glaucous or whitish, covered with mealiness Wos. o l 



S Plants glandular-puberulent, screen, aromatic. Embryo a half ring (b). 



b Flowers glomerate, axillary, in spike-like racemes JNos. 8, 9 



b Flowers cymous, innumerable, in long, raceme-like panicles ISO. 10 



1 C. polyspermum L. Procumbent or suberect, branched from the base ; Ivs. 

 petiolate, divaricate, ovate or oblong, obtuse or acute, thin, entire, glabrous, 



