40G r«.)LY(;(>.\Aci:.K. (m rivWUKAT family.) 



1. S. linearis, Muijiiin. Aimnal; stem iliffusily iiiiicli liriiiidied ; leaves 

 linear, ai-iitc ; ealyx lolies <.»l)tiise, keeleil ; wtaiiieiis oxserted. — L(i\v xaiitly 

 plaifs aloiij? llic foa*it. Scjit. — Stem 1^ :j-' liigli. Leaves l'-2' long. 

 l'"li.wi'rs niiniile. 



6. SALSOLA, I. Sai.twokt. 



FlDwers perfeet, 2-liiarUil. (..ahx .'^pi)aile(l, liie lul)e.s at leii^tli trau.svcr.sely 

 winpeii. Stamens .5, sliglitly united at the l)ase. Style slender: stigmas 2. 

 Utricle tlattened at the apex, enclosed in the j)ersistent calyx. Embryo coni- 

 cal-spiral. Allmmen none. — Saline plants, with alternate and Heshy leaves, 

 and axillary tiowers. 



1. S. Kali, L. Smooth; stem spreading, ascending; leaves sulnilate, 

 spine-pointed like the ovate bracts; flowers s(ditary; calyx loiies connivent, 

 with the dilated, membranaceous wing rose-colored. — Sandy coast, Georgia, 

 and uorthward. August, (l) — Stem l^-Hr' high. 



Ohdkk 110. POLYGOXACEiE. (Buckwiikat Family.) 



Herbs, shrubs, or (tropical) trees, with simple mostly alternate and 

 stipulate leaves, and perfect or dioecious flowers. — Calyx 3 - 0-cleft, or 

 3 - 6-sepalous, persistent. Stamens -i-l'J, inserted on the base of the 

 calyx: anthers 2-celled. Ovary single, 1-celled, with the solitary or- 

 thotropous ovule erect from the base of the cell. Styles 2 - 3, distinct 

 or partly united. Fruit (achenium) lenticular or 3-angled, rarely ovoid. 

 P2mbryo mostly on the outside of mealy albumen. Radicle pointing 

 upward. — Stipules sheathing, annular, or wanting. 



Synopsis. 



SunoRDER I. POLYGONEiE. Involucre none. Calyx .5 - 6 cleft, or 5 - 

 6-sepalons. Stamens 4-9 (mostly 5-8). Ovules sessile. Embryo curved on 

 the outside of the all)umen, rarely straight in its centre. Stipules .sheathing. 



« Calyx 5 - C>-sepalou8, the inner sepals erect, mostly enlarged in fruit. 



1 . RUMEX. Calyx green, often grain-bearing. Stigmas many-cleft. 



2. POLY'GONELLA. Calyx corolla-like. Stigma entire. 



• « Calyx .'i-sepaloiis, the sepals all erect, un(;hanged in fruit, free from the achenium. 



3. POLY'GDNUM. Sepals entire. Embryo oirved on the outside of the albumen. 



4. THYSAXELLA. Inner sepals fimbriate. Embryo straight at the side of the albumen. 



• * » Calyx 5-parted, the tube enlarged and fleshy in fruit, and partly united with the 



achenium. 



5. COCCOLOBA. Achenium ovoid or globose. Trees. 



Suborder 11. BTJrXNTCIITK.E. Involucre none. Calyx .5-parted, the 

 tube enl.arged and indurated in fruit. Stamens 8. Ovule borne on a slender 

 stalk. Embryo at the margiti of the albumen. Stipules none. 

 C. BRUNNICHL\. Pedicels winged in fruit. Climbing shrubs. 



