Par? 1, 1916] CHENOPODIACEAE 35 
Bracts 2-3 mm. long, or, if slightly longer, 
the plants herbaceous. XVIII. BarcuavaNnakE. 
Bracts 4-10 mm. long; plants usually fruticose. 
Bracts panduriform, the sides appendaged; 
densely white-furfuraceous shrubs. XXV. CORRUGATAE. 
Bracts never panduriform. 
hrubs, copiously furfuraceous. 
Bracts broader than long. XXIV. OpovaTae. 
Bracts as long as broad or longer. XXXVI. NvTratlianak. 
Annual herbs, bright-green and glab- 
rate. XXVIT. PHYLLOSTEGIAE. 
Leaf-blades sagittate and clasping. XX. JULACEAE. 
Plants tall shrubs, fruticose nearly throughout, 
usually 6-40 dim. high, or, if lower, the branches 
spinose. 
Bracts orbicular, or laciniate-dentate, 2-4 mm. 
long. 
Margins of the bracts deeply laciniate-dentate, 
the sides usually muricate; leaf-blades small, 
narrow. XXII. PonycarPak. 
Margins of ,the bracts entire or crenulate; 
leaf-blades large, broad. XX. LENTIFORMES. 
Bracts much longer than broad, 5-12 mm. long, 
entire or sparsely dentate. XXVIII. ConFrertIFOLIAE. 
Bracts 4-winged longitudinally. XXIX. CaNESCENTES. 
I. Horvrenses 
Leaf-blades green, glabrous, dull on the upper surface. 1. A. horiensis, 
Leaf-blades densely white-furfuraceous beneath, lustrous on the upper surface. 2. A. nitens. 
TI, Hasratag 
Leaves sessile. 3. A. drymarioides. 
Leaves, at least the lower ones, petiolate. 
Bracts foliaceous only at the apex, the margins entire, the sides smooth 
or nearly so. 
Leaf-blades linear; bracts linear, 8-12 mm. long. 4, A. zosteraefolia. 
’ Leaf-blades lanceolate or broader; bracts rhombic-oval to rounded- 
deltoid, never linear. 
Plants coarsely furfuraceous; bracts 6-20 mm. long, spongious 
and much thickened at the base; radicle superior. 5. A. alaskensis. 
Plants finely farinose; bracts 3-12 mm. long, little if at all 
thickened at the base; radicle inferior. 
Bracts 4-12 mm. long; leaf-blades oblong to lance-oblong, 
mostly entire. . 6. A. Gmelini. 
Bracts about 3 mm. long; leaf-blades deltoid to rhombic-ovate, 
usually dentate. 7. A. joaquiniana, 
Bracts with broad dentate foliaceous margins, the sides usually tubercu- 
late or muricate. 
* Leaf-blades linear; plants erect. 8. A. littoralis. 
Leaf-blades lanceolate to rounded-deltoid; plants usually decumbent. 
Bracts rhombic-oval, cuneate or rounded at the base; lower leaf- 
blades rhombic-lanceolate to lanceolate or oblong, the upper 
ones usually entire. 9. A. patula, 
Bracts rounded-deltoid or ovate-deltoid, truncate or broadly 
rounded at the base; lower leaf-blades triangular-hastate or 
rounded-deltoid, the upper ones usually hastate. 10. A. hastata. 
III. Rosgae 
Leaf-blades usually hastate or subhastate, sinuate-dentate, green and 
glabrate on the upper surface. 11. A. tatarica. 
Leaf-blades ovate or rhombic-ovate, repand-dentate, densely furfuraceous 
on both surfaces. . 
Fruiting-bracts rhombic or cuneate-orbicular, the margins dentate; 
seed lustrous, not apiculate. 12. A. rosea. 
Fruiting-bracts rhombic-hastate, dentate only near the base; seed dull, 
apiculate. 13. A. sabulose. 
IV. LInpLEYANAE 
A single adventive species in North America. 14. A. Lindleyi. 
V. CALIFORNICAE 
A single species. 15. A. californica, 
VI. GRACILIFLORAE 
A single species. 16. A. gracilifiora. 
