462 CHENOPODIACEAE 
ee an achene: flowers perfect, not in 
m . Fam. 7. PETIVERIACEAE. 
brc A T flowers dioecious, in 
axillary cones. Fam. 8. BATIDACEAE. 
Fruit an ar UP: the achene surrounded by the 
calyx-tube 
Herbs: seed with a hooked embryo Fam. 9. ALLIONIACEAE. 
Shrubs or trees: seed with à Strait embryo. Fam.10. PISONIACEAE. 
Fruit a capsule dehiscent by apical or longitudinal 
valves xis in Portulaca). 
Ora pocta celled: corolla wanting. Fam.11. TETRAGONIACEAE. 
Ovary 1i-celled: corolla mostly present. 
Sepals 2: leaves mostly alternate. Fam.12. PORTULACACEAE. 
Sepals 4 or 5: leaves mostly opposite. 
Sepals distinct: ovary sessile: petals not 
clawe Fam. 13. ALSINACEAE. 
Sepals united : ovary stipitate: petals 
clawed. Fam. 14. CARYOPHYLLACEAE. 
Famy 1. CHENOPODIACEAE—Gooseroor FAMILY 
Herbs woody plants. Leaves alternate or opposite: blades simple. 
Flowers ee polygamous, vci pis. or dioecious, mostly in eongeste 
spikes. Calyx of 1, 2, 3, 4, or 5 persistent sepals. Corolla wanting. 
Androecium of as many Sas. as there are sepals. Gynoecium of 2 or 
more united earpels. Ovary 1-celled. Fruit a utricle, sometimes achene- 
like.—About 75 genera and 550 species of wide geographic distribution, 
many of them becoming weeds. 
Plant um succulent : the stems not conspicuously jointed : leaves alternate, not scale- 
PBE i annular, conduplieate, or semi-annular: endosperm surrounded by the 
ryo. 
Fruit opening at maturity, or at germination, by 
a lid: s perfect. Tribe I. BETEAE. 
Fruit indehise 
Flo ns mostly perfect, ebracteolate. Tribe II. CHENOPODIEAE. 
Ru d unisexual, the dias bi- 
Tribe III. SPINACIEAE. 
tenre dud Mee succulent : as wingless Tribe IV. DONDIEAE. 
Leaves, and bracts spinescent: calyx Seon ally 
winged at maturity. Tribe V. SALSOLEAE. 
Plant succulent, the stems conspicuously jointed : 
leaves scale-like, opposite. Tribe VI. SALICORNIEAE. 
I. BET 
Herbs with fleshy roots, crisped leaf-blades, ud the fruit aS in Lara hardened 
base of the perianth. . BE 
II. CHENOPODIEAE. 
Calyx ded winged in fruit. 
2. CYCLOLOMA. 
kin iones not winged 
X becoming saccate and reticulate, slightly lobed. 3. ROUBIEVA. 
Gane n saecate nor veiny, deeply lobe e 
Embryo annular, encircling the endosper 4. CHENOPODIUM. 
Embr 5 horseshoe- shaped, not encircling tie endosperm. 
Pericarp aa gland-dotted: inflorescence a dicho- 
tomous c 5. BOTRYDIUM. 
Pericarp eine dotted: inflorescence spicate or 
paniculate. . AMBBRINA. 
III. SPINACIE 
Stigmas 4 or 5: bracts united to the apex: EA: glabrous. T. SPINACIA. 
Stigmas 2 or 3: bracts distinct, at least at the apex: foliage 
with inflated hairs, at least t when young. 8. ATRIPLEX. 
IV. DONDIEAE. 
Plants with nearly terete leaves, the mature calyx wingless, 9. DONDIA. 
V. SALSOLEAE. 
Plants with spinescent leaves, the mature calyx winged. 10. SALSOLA. 
I. ICORNIEAE. 
Green or red pied with the flowers sunken in excava- 
tions of the internodes 11. SALICORNIA. 
