4 NORTH AMERICAN FLORA [VoLumMR 21 
Perianth-segments slightly if at all imbricate. 
Fruit opening after ripening or at germination by a lid; flowers 
perfect. II 
. BETEAE. 
Fruit indehiscent. 
Leaves well developed; stems not jointed; flowers usually glomer- 
ate, or solitary i in the axils. 
Fruit’ when ripe, or even later, enclosed by the perianth or 
by bracts. 
Pubescence of inflated, stellate, or glandular hairs, or 
sometimes wanting. 
Flowers mostly perfect, ebracteolate. III. CHENOPODIEAE. 
Flowers usually unisexual, the pistillate ones bracte- 
olate. IV. ATRIPLICEAE. 
Pubescence sericeous; flowers usually perfect, mostly 
ebracteolate. V. Kocuigag. 
Fruit naked when ripe; flowers perfect, spicate, ebracteolate. VI. CorIsPERMEAE. 
Leaves reduced, scale-like; stems jointed; flowers in fleshy spikes 
or sunken in joints of the stems, perfect, ebracteolate. VII. SaLIcORNIEAE. 
Embryo spirally coiled; endosperm wanting or divided by the embryo into : 
two parts. 
Flowers ebracteolate, monoecious, the staminate ones consisting of P 
stamens arranged beneath a peltate scale, i in ament-like spikes. VIII. SarcoBATIDEAE. 
Flowers bracteolate, mostly perfect, never in ament-like spikes. 
Bractlets small, scale-like, shorter than the perianth; embryo plane- 
spiral. IX. Donvieak. 
Bractlets equaling or longer than the perianth; embryo usually 
conic-spiral. X. SALSOLEAE. 
I. POLYCNEMEAE. Small herbs, sometimes suffrutescent at the base. 
Leaves opposite or alternate, the blades narrow. Flowers perfect, solitary, 
subtended by 2 bractlets and 2 foliaceous bracts; perianth-segments nearly 
free, erect, strongly imbricate. Fruit membranaceous, indehiscent, included 
in the unchanged perianth. 
1. NITROPHILA S. Wats. Bot. King’s Expl. 297. 1871. 
Perennial herbs from horizontal rootstocks, much branched, the branches subarticulate. 
Leaves opposite, the blades linear or oblong, entire, fleshy. Flowers perfect, ‘2-bracteolate, 
swall, axillary, solitary or in 3’s; perianth chartaceous-membranaceous, 5-parted, the seg- 
ments erect, concave, i-nerved, unequal, unchanged in fruit. Stamens 5, perigynous; fila- 
ments filiform, distinct; anthers subglobose: Style filiform, the 2 stigmas subulate; ovule 
pendulous from an erect funicle. Utricle shorter than the perianth, ovoid, the pericarp 
membranaceous, free from the seed. Seed vertical, lenticular; embryo annular, nearly sur- 
rounding the copious endosperm; radicle inferior. 
Type species, Banalia occidentalis (Nutt.) Moq. 
1. Nitrophila occidentalis (Nutt.) S. Wats. Bot. King’s Expl. 297. 
1871. 
Banalia occidentalis Moq. in DC. Prodr, 13?: 279. 1849. 
Halimocnemis occidentalis Nutt.; Moq. in DC. Prodr. 132: 279, as synonym. 1849, 
Glaux acutifolia A. Heller, Muhlenbergia 2: 109. 1906. 
Plants glabrous; rootstocks stout, elongate; stems erect or decumbent, 1-3 dm. long, 
much branched, the branches slender or stout, obtusely angled; leaves sessile, the lowest blades 
oblong, clasping, the upper ones linear, 0.5-2.5 cm. long, semiterete, acute or acuminate, 
mucronate; bracts similar to the leaves but shorter, usually 2-3 times as: long as the calyx; 
flowers sessile or the lateral ones short-pediceled; calyx-lobes broadly oblong to ovate, obtuse, 
stramineous or whitish; stamens included; fruit brown; seed 1 mm. broad, smooth, black and 
shining, the margin rounded. 
TYPE LocaLity: Oregon. 
DIsTRiBUTION: In alkaline soil, Oregon, Matai and California. 
In.ustRation: E. & P. Nat. PA. 31*; f. 21, 
II. BETEAE. Annual or ene herbs. Leaves alternate, glabrous. 
Flowers perfect, spicate or cymose; perianth-segments 5 or 3, herbaceous or 
