362 CHENOPODIACE^. (GOOSEFOOT FAMILY.) 



coiled into a ring (^around the albumen^ when there is any) or spiral. — Calyx 

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

 innocent plants.) 



Synopsis. 



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



TwBB I. CHENOFODI£l^. 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-cleffc, in fruit surrounded by a horizontal membrauacoous 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-cleffc). 



5. ROUBIEYA. 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. 



Tribb TI. SPIIVACIE]^. Flowers monoecious or dicecious, and of two distinct sorts : 

 otherwise as in Tribe I. 

 fi. 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. 



Tribb m. SAIjICOIMflEj.^. 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 utricular. 



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



Teibe it. SXT.^DE^. Embryo in a flat spiral. Leaves terete and fleshy. 

 6. CHBNOPODINA. Calyx 5-parted, wingless and hornless. Seed horizontal. 



Tribe V. SAIjSOLEJE. Embryo conical-spiral. Leaves fleshy or spinesoenfc. 

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



1. CYCI.Or.dlWA, Moquin. Winged Pigweed. 



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

 keeled, including the depressed fruit, at length appendaged 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 kukXw, round about, and Xw/ta, 

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



1. C* platyphyllum, Moquin. (Salsola platyphylla. Miclix.) — Illi- 

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



9, CHE]VOP6l>ItJ]?I, L. GoosEFOOT. Pigweed. 



J'lowers perfect, all bi-actless. Calyx 5-cleft, rarely 2-4-cleft or parted, with 

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



