612 ORDER 105. CHENOPODIACEJ3. 



* TE. SALICOEN. Inflor. anomalous. Fls. imbedded. St. jointed, (leafless).. ..SALICOBNIA. 9 



* TEIBE SPINACIEJS. Inflor. normal. Fls. of two sorts. St. continuous. Lvs. broad, (a) 



a Fruit enclosed in a hardened calyx without bracts. Cultivated SPIN ACIA. 8 



a Fruit naked (no calyx) between two united bracts. Leaves oval OBIONE. 7 



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



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



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



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



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



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



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



1. BE'TA, Tourn. BEET. (Celtic bett, red, the usual color of tho 

 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. Rt. 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. 



/?. CICLA. SCARCITY. Root cylindraceous, rather slender, whitish ; Ivs. some- 

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



y. RAPA. TURNIP BEET. Root short and thick, sweet and juicy, white or red. 



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



2. CYCLOLO'MA, Moquin. (Gr. KVK^og, a circle, Aw/m, 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. Op 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-gloiu- 

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



3. CHENOPCTDIUM, Tourn. (Gr. #T?V, a goose, Trovg, foot; from 

 the resemblance of the leaves.) Calyx braetfess, 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. 



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 No. 1 



a Leaves toothed or lobed, petiolate Nos. 24 



* Herbage glaucous or whitish, covered with mealiness Nos. 5 7 



Plants srandular-puberulent, green, aromatic. Embryo a half ring (b). 



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



b Flowers cymous, innumerable, in long, raceme-like panicles No. 10 



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

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



