612 Oedbb 105.— CHENOPGDIACEiE. 



* T«. Saliooks. Inflor. anomalous. FIs. imbedded. St. jointed, (loafloss) Saucobsia. 9 



* Tbibe SpinaciejE. Inflor. normal. FIs. of two sorts. St. continuous. Lvs. broad, (a) 



a Fruit enclosed in a hardened calyx without bracts. Cultivated Spinacia. tj 



a Fruit nailed (no calyx) between two united bracts. Leaves oval Obione. 7 



a Fruit nalied (no calyx) between two subdistinot bracts. Lvs. triangular. Atkiplei. 6 



* Tbibe Cbenopodie.«. Inflor. normal. FIs. perfect and alike. St. contln. Lvs. broad, (e) 



o Seed vertical. Pericarp thin, smooth, mostly in a fleshy calyx Blitum. 5 



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



o Seed horizontal. Pericarp thin, in a plain, nnbordcred calyx Cuenopodium. 8 



c Seed horizontal. Pericarp thin, in a calyx bordered all around Ctcloloma. 2 



c Seed horizontal. Pericarp thick and hard, calyx ribbed Beta. 1 



1. BETA, Touri). Beet. (Celtic bett, red, the usual color of the 

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

 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 steins, 

 alternate lvs. 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 subaesaile, 

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

 which are arranged in large, somewhat leafy panicles. — % Fields .md 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. 



/3. cioLA. ScAEcrrr. Root cylindraceous, rather slender, whitish ; Iva. 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 largo, mostly white. Cultivated for stock. 



2. CYCLOLO'MA, Moquin. (Gr. kvkXoc;, a circle, XCifia, border ; 

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

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

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

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

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

 of small sessile fls. 



C. plalTph^llum 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-gJcm- 

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



3. CHENOPO'DIUffl, Toum. (Gr. x'P'i » goose, Txovg, foot; from 

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

 keeled, never appendaged, more or less enclosing the fruit ; stamens 6 ; 

 .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. Embrj'o a complete ring (*). . 



* Herbage green, r-arofy purplish, not glaucous or mealy (a). 



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



a Leaves toothed or lobed, petiolate Nos. 2— •) 



* Herbage glancous or whitish, covered with mealiness Nos. 6—7 



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



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



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



1 C polysp^rmum L. Procumbent or suberect, branched from the base ; lvs. 

 petiolate, divaricate, ovate or oblong, obtus« or acute, thin, eatiref., glabrous, 



