362 CHENOroDiACE.fi. (GOOSEFOOT FAMILY.) 



coiled into a ring (around (lie albumen, tvhen there is any) or spiral. Calyx 

 persistent, enclosing the fruit Styles 2, rarely 3-5. (Mostly inert or 

 innocent plants.) . See Addend. 



Synopsis* 



I. CYCLOLOBE.33. Embryo curved like a ring around the albumen. 



TIUBE I. CHENOPODIE^E. Flowers usually all alike and perfect, or merely polyg- 

 amous by the want of stamens in some of them. Stem not jointed. Leaves flat 

 Flowers in racemes, spikes, or panicles. (Fruit enclosed in the calyx.) 



1. CYCLOLOMA. Calyx 5-cleft, in fruit surrounded by a horizontal membranaceous wing. 



Seed horizontal. 



2. CHENO PODIUM. Calyx 3 -5-cleft or parted, the lobes naked or merely keeled in fruit 



Seed horizontal (rarely vertical when the calyx is only 2 -3-cleft). 

 8. ROUBIEVA. Calyx 5-cleft, becoming closed and pod-like in fruit Utricle glandular. 



dotted. Seed vertical. 

 4. BLITUM. Calyx of 3 - 5 sepals, dry or juicy in fruit. Utricle membranaceous. Seed 



vertical. 



TRIBE II. SPINACIE.3S. Flowers monoecious or dioecious, and of two distinct sorts: 



otherwise as in Tribe I. 



6. ATRIPLEX. Pair of bracts including the otherwise naked ovary and fruit flat and dilated, 

 often united below. Radicle inferior or lateral. 



6. OBIONE. Fruit-bearing bracts united. Radicle superior. 



TRIBE in. SAiLICORNIEJE. Flowers all alike and perfect, spiked or in catkins. 

 Stem jointed. Leaves awl-shaped, scale-like, or none. 



7. SALICORNIA. Flowers sunk in excavations of the axis. Calyx 4itricular. 



II. SPIROLOBEzE. Embryo coiled in a spiral : albumen none or little. 



TRIBE IV. STJ .3EDEJE. Embryo in a flat spiral. Leaves terete and fleshy. 



8. CHENOPODINA. Calyx 5-parted, wingless and hornless. Seed horizontal. 



TRIBE V. SAL,SOL,E^E. Embryo conical-spiral. Leaves fleshy or spinescent. 



9. SALSOLA. Calyx of 5 sepals, in fruit horizontally 5- winged. Seed horizon taL 



1. CYCL.OL.OMA, Moquin. WINGED PIGWEED. 



Flowers perfect, bractless. Calyx 5-cleft, with the concave lobes strongly 

 keeled, including the depressed fruit, at length appcndaged with a broad and 

 continuous horizontal scarious wing. Stamens 5. Styles 3. Seed horizontal, 

 flat. Embryo encircling the mealy albumen. An annual and much-branched 

 coarse herb, with alternate sinuate-toothed petioled leaves, and small panicled 

 clusters of sessile flowers. (Name composed of Ku/cXu;, round about, and Xd)/ia, 

 a border, from the encircling wing of the calyx in fruit.) 



1. C. pliitypliyllmii, Moquin. (Salsola platyphylla, Michx.) Illi- 

 nois, on the alluvial banks of the Mississippi, and northwestward. 



2. CHE NO PODIUM, L. GOOSEFOOT. PIGWEED. 



Flowers perfect, all bractless. Calyx 5-cleft, rarely 2 -4-cleft or parted, with 

 the lobes sometimes keeled, but not appendaged nor becoming succulent, more 



