mTROPHn-A OHENOPODIACEiE 591 



* * Bracts obcom pressed, completely united, not muricate : testa 

 membranaceous. 



7 Eurota Low and shrubby white-tomentose perennials : pericarp coni- 



cal, densely hairy, not winged. 



8 Eremoseinium Somewhat spinescent nearly glabrous shrnbs : pericarp 



flattened, orbicular, wing-margined, glabrous. 



Tribe in Flowers perfect, without bracts. Seed invested by 



the pericarp. 



Corlspermum Low annuals: flowers solitary in the axils ; fruit com- 

 pressed-elliptical, acutely margined. 



Tribe iv Fleshy isaline plnnts with jointed stems and scale- 

 like leaves. 



9 Salicornia Branches opposite : flower clusters decussitately opposite: 



calyx saccate, becoming spongy. 



Tribe v Herbsor shrubs with fleshy leaves. Stems not jointed. 



10 Sarcobatus Somewhat spinescent shrubs : flowers unisexual : the ' 

 staminate in aments, without calyx ; the pistillate axillary, solitary, 

 with saccate calyx : fruit transversely winged. 



11 Dondia Saline herbs or shrubs with perfect axillary flowers: the 

 calyx 5-cleft or 5-parted. 



Tribe 1 Chenopodiese Moq. in DC. Prodr. xiii, 48. Sterns 

 not jointed. Leaves flat, except in Kochia. Flowers perfect, with- 

 out bracts. Sepals persistent. Seeds free, mostly with crustaceous 

 testa and copious albumen. Embryo annular. 



1 NITROPHILA Watson Bot. King 367. 



Low branching perennials with fleshy opposite leaves and 

 small perfect axillary flowers. Calyx of 5-7 equal erect concave 

 and carinate sepals, mostly 2-bracted at base. Stamens as many 

 as sepals, united into a very narrow perigynous disk. Style 

 short. Stigmas 2. Utricle subglobose, indehiscent beaked by 

 the persistent style included within the conriivent sepals. 



^. occidentalis Watson 1. c. Glabrous throughout : stems ascending, 

 or decumbent, 3-8 inches long, from a perennial running rootstock, bran- 

 ching from the base: lower lesR'es broadly ovate or oblong, 2-3 lines long, 

 the rest linear, 12 lines long, semiterete, acuminate and cuspidate : bracts 

 .similar but shorter, mostly twice longer thscii'the flowers: flowers 1-3 in 

 each axil, the lateral ones often short-pedicelled, 2-3-bracted, the central 

 one often bractless : sepals a line long, rather rigid, ovate acutish exceeding 

 the stamens and style : utricle brownish: seeds half a line broad, black and 

 shining. In moist alkaline soil, southeastern Oregon to California. 



2 KOCHIA Roth. Schrad. Journ. Bot. i, 307. (1799.) 



Perennial or annual herbs or low shrubs with alternate leaves 

 and small flowers solitary or few in the axils of the upper leaves. 

 Flowers perfect or pistillate sometimes bifacteolate. Calyx her- 

 baceous, 5-cleft, persistent over the fruit, and at length developing 

 a horizontal wing. Stamens 3-5, usUatty exserted: filaments linear. 



