306 
FLOBA OF ADEN. 
XLIII -CHENOPOMACEdE. 
Herbs or shrubs. Leaves alternate (rarely opposite) ; stipules 0. 
Flowers small, usually green, hermaphrodite or 1 -sexual; bracts 1 or 
0 ; braeteoles 0 or 2. Perianth simple, sepaline ; segments 3 — 5, free or 
connate, imbricate in bud (in female flowers sometimes 0). Stamens 
usually 5, opposite the perianth-segments, hypogynous or perigynous ; 
filaments usually free, sometimes with intervening staminodes ; anthers 
2-celled. Ovary ovoid, globose or depressed, 1-eelled ; ovule solitary, 
basal or lateral, campy lotropous ; style terminal, short or long, stigma 
petiolate, 2 — 3-lobed ; or styles 2 — 3 ; or stigmas 2 — 5 free or slightly 
united, sessile. 
Fruit usually a utricle enclosed in the often enlarged fleshy perianth 
(when this is present). Seed erect, inverse or horizontal; testa crustace- 
ous, coriaceous or membranous ; albumen fleshy or floury or 0, embryo 
curved, annular, or spiral. 
Genera about SO ; species about 520. 
Distribution : — Cosmopolitan . 
A. Embryo not spirally twisted. 
1. Leaves flat, not very small ...... 
2. Leaves T * 5 inch long, obvoate, apparently perfoliate . 
B. Embryo spirally twisted. 
1. Bracts small, scale-like. Stamens 5 . » . . 
2. Bracts almost always as long as the perianth- leaves. 
Stamens 4 — 5 
a. Seeds usually horizon tah 
(a) Perianth becoming very hard and the fruit, 
therefore, resembling a nut . 
(A) Perianth remaining unchanged • 
b. Seeds vertical. 
(a) Branches articulate, . . 
(b) Branches continuous ...... 
1. A triplex. 
2. Halopeplis. 
3. Sua?da. 
4. Traganum. 
5. Salsola. 
6. Anabasis. 
7. Cornulaea, 
1. Atriplex Linn. 
Herbs or undershrubs, mealy, scaly or closely tomentose. Leaves 
alternate, undivided ; blade flat, often toothed or lobed. 
Flowers numerous, clustered, in cymes running into terminal spikes 
and panicles. Branches, and not rarely whole plants carrying flowers 
all of one sex. Flowers small, unisexual. Perianth of male of 5 lobes 
united below, without braeteoles. Stamens 5, or 4 — 3. Female flower 
without perianth, enclosed between 2 erect ovate or triangular braeteoles. 
Ovary ovoid, free, with one ovule on a basal stalk, oblique ; style 
cylindric, with usually 2 branches. 
