* 

 Aphanisma. CHENOPODIACE^E. 45 



TRIBE IV. SALICORNIE/E. Flowers mostly perfect, immersed by threes in the depressions 

 of a close cylindrical spike. Seeds vertical. Embryo annular, with little albumen. 

 Fleshy saline plants, with jointed stems and scale-like leaves. 



11. Salicornia. Flower-clusters decussately opposite : perianth saccate, becoming spongy. 



Branches opposite. 



12. Spirostachys. Flower-clusters in spirals ; perianth 4- 5-cleft. Branches alternate. 



TUIBE V. SUEDEJE. Embryo spiral, with little or no albumen. Leaves fleshy, terete. 

 Steins not articulated. 



13. Sarcobatus. Flowers unisexual ; the staminate in aments, without perianth ; the pistillate 



axillary, solitary, with saccate perianth. Fruit transversely winged. Saline shrub, 

 somewhat spinescent. 



14. Sueeda. Flowers perfect, axillary; perianth 5-cleft or -parted. Saline herbs, or woody at 



base. 



1. KOCHIA, Roth. 



Flowers perfect (or the stamens abortive), without bracts. Perianth herbaceous, 

 subglobose, 5-cleft, persistent over the fruit, and at length usually developing an 

 entire or lobed horizontal wing. Stamens 5, usually exserted. Ovary depressed : 

 styles 2, filiform. Pericarp membranous, persistent. Seed horizontal ; testa mem- 

 branous. Embryo nearly annular, green, enclosing scanty albumen. Perennials, 

 woody at base, with scattered linear terete leaves, and the flowers solitary or few in 

 the axils of the virgate leafy stems. 



An Australian and Old World genus of about 25 species, with a single representative in 

 America. 



1. K. Americana, Watson. Woody and branching at base : the erect stems 

 mostly simple and virgate, | to 1^ feet high, leafy, villous-tomentose or nearly gla- 

 brous : leaves 3 to 1 2 lines long, acutish, ascending : flowers 1 to 3 in the axils, 

 mostly with abortive stamens : perianth densely white-tomentose, nearly a line 

 broad in fruit ; the membranous wing as wide or wider, its lobes cuneate-rounded, 

 nerved and somewhat crenulate : ovary ovate, tomentose above : styles elongated : 

 pericarp nearly smooth : seed of a line broad. Eev. Chenop. in Proc. Am. 

 Acad. ix. 93. K. prostrata, Hook, in Kew Journ. Bot. v. 262, not Schrader; 

 Watson, Bot. King Exp. 293. 



Valleys and foothills of the Great Basin, from Northwestern Nevada to W. Wyoming and 

 southward to Arizona ; doubtless in Northeastern California. 



2. APHANISMA, Nutt. 



Flowers perfect, without bracts. Perianth 3-cleft, with concave segments, un- 

 changed in fruit. Stamen solitary ; filament short. Ovary depressed : style short, 

 shortly 2 -3-cleft. Pericarp rather thick and indurated, somewhat 5-angled, the 

 base surrounded by the dry calyx. Seed horizontal, with very thin crustaceous 

 testa. Embryo annular, surrounding the copious albumen. A slender glabrous 

 annual, with alternate sessile entire leaves, and minute axillary mostly solitary 

 flowers. A single species. 



1. A. blitoides, Nutt. Stems ascending, branched, 1 to 2 feet high : leaves 

 thin, oblanceolate, ovate-oblong, the upper ones ovate, acute, 3 to 1 2 lines long : 

 segments of the minute perianth ovate, very obtuse, thin and closely appressed to 

 the base of the fruit : fruit half a line broad : seed punctulate-rugose, shining. 

 Moquin in DC. Prodr. xiii 2 . 54 ; Watson, 1. c. 90. 



Near San Diego ; very sparingly collected, Nuttall, Cleveland. 



