362 cHESOroDiACE.fi. (GOOSKFOOT 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^E. Embryo curved like a ring around the albumen. 



TJUBE I. CHE3VOPODIE.3E. Flowers usually all alike and perfect, or merely pclyg. 

 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. CTCLOLOMA. Calyx 5-cleft, in fruit surrounded by a horizontal inernbranaceous 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^K. Flowers monoecious or dioecious, and of two distinct sorts J 



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 III. SALICORIVIEJE. Flowers all alike and perfect, spiked or in catkina 

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



7. SALICORNIA. Flowers sunk in excavations of the axis. Calyx utricular. 



II. SPIROLOBE^E. Embryo coiled in a spiral : albumen none or little. 



TRIBE IV. SU.SEDE.flE. Embryo in a flat spiral. Leaves terete and fleshy. 



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



TRIBJB V. SALSOLEJE. Embryo conical-spiral. Leaves fleshy or apinesccnt. 



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



1. CYC.LOL,6]JIA, Moquin. WINGED PIGWEED. 



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

 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 Kv*Xu,, round about, and Xo>/ia, 

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



1. C. platyptiylllllll, Moquin. (Salsola platyphylla, Atfc&t. ) Illi- 

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



2. CIIENOP&DIUM, L. GOOSEFOOT. PIGWEED. 



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

 the lobes sometimes keeled, but not appendaged nor becoming si ccule >t, more 



