iSo 67. CHENOPODIACEAE 



6. Periantli of 2 inner and 3 outer segments of whicli two are in front and one 



behind. Fruiting periantli winged, not liardened. Seed compressed 

 dorsally. Flowers solitary, more rarely in clusters, and then branches 



jointed and leaves opposite 7 



Perianth of 3 inner and 2 outer segments of which one is in front and one 

 behind. Fruiting perianth more or less hardened. Seed compressed 

 laterally. Branches continuous 8 



7. Branches jointed. Leaves opposite, sometimes reduced to scales. Fila- 



ments awl-shaped. Style short. — Species 5. North Africa and 

 Nubia. Some yield soda or are used medicinally. Anabasis L. 



Branches continuous. Leaves alternate. Spinous shrubs. Flowers solit- 

 ary. Filaments flattened ; connective pointed. Style long. Pericarp 

 membranous. — Species I. North Africa NoaeaMoq. 



8. Perianth-segments united at the base, wingless in the fruit, but one of them 



sometimes produced into a prickle. Style long. Shrubs. . . 9 



Perianth-segments free, winged in the fruit, at least some of them. Style 



short. Disc lobed. Leaves alternate. Flowers in clusters. . . 10 



■ 9. Leaves opposite. Flowers in pairs, hermaphrodite. Disc indistinct. 



— Species i. Sahara. Nucularia Battand. 



Leaves alternate. Flowers in clusters, polygamous. Disc lobed. — 



Species 2. North Africa and Northern Central Africa. Cornulaca Del. 



10. Inner perianth-segments not winged in the fruit. Stamens with a 2 -lobed 



ccnnective. Shrubs. ■ — Species i. North Africa. (Lender Halogeton 



C. A. Mey.) Agathophora Fenzl 



Inner and outer perianth-segments winged in the fruit. Stamens with 

 a blunt connective. Herbs. — Species i. North-Wcst Africa (Algeria). 

 Used as a vegetable or for making soda. . . Halogeton C. A. Mey. 



11. (i.) Branches more or less distinctly jointed. Leaves little developed, 



glabrous. Flowers in clusters, usually of 3, arising in the axils of 

 scale-like bracts or apparently sunk in hollows of the rachis and col 

 Iccted in cone-shaped inflorescences. Stamens 1 — 2. [Tribe 



SALICORNIEAE.] 12 



Branches continuous. Leaves well developed, usually hairy. Flowers 

 soUtary or in clusters, more rarely in spike-like inflorescences. Stamens 

 3 — 5, more rarely i — 2. 16 



12. Bracts and upper leaves alternate 13 



Bracts and upper leaves opposite 14 



13. Perianth slightly flattened from the side, 4^ — 3 -toothed, surrounded by a 



wing-like border. Stamens 2. Ovule with a short funicle. Micropyle 

 of the ovule and radicle of the embryo inferior. Low shrubs.— Species 



I. Noith-West Africa (Algeria) Kalidium Moq. 



Perianth flattened froui the back, 3-toothed, without a wing-like border. 

 Ovule with a long funicle. Micropyle and radicle superior or ascending. 



— Species 2. North Africa to Nubia. Yield soda . Halopeplis Bunge 



