GOOSEFOOT FAMILY 



77 



V. Truncatae. 



Represented by the single species. 



VI. Argenteae. 



Leaves narrowly ovate to oblong, narrowed at the base, 3-10 mm. wide. 

 Leaves deltoid to ovate, broad and often subhastate at base. 



Upper leaves short-petioled, the lowest opposite. 



Upper leaves strictly sessile, the lowest alternate. 



VII. Arenariae. 



Leaves dentate. 



Staminate flowers in elongated usually paniculate spikes. 



Staminate flowers in capitate clusters in the upper axils or in simple interrupted terminal spikes. 



13. A. Davidsonu. 



Leaves all entire. 



Staminate flowers all axillary. 



Staminate flowers chiefly in terminal spikes. 



VIII. PUSILLAE. 



Plants simple or virgately branching and strictly erect. 



Leaves cordate at base; bracts 4-5 mm. long. 



Leaves rounded at base; bracts 2.5-3.5 mm. long. 

 Plants widely branching from the base, low and rounded. 



Branches scurf y-villous; bracts 2.5-3 mm. long, acute. 



Branches merely scurfy; bracts 1-1.5 mm. long. 



IX. Elegantes. 



Represented in the Pacific States by a single species. 



X. Californicae, 



Represented by only one species. 



XI. Semibaccatae. 



Represented by the single introduced species. 



XII. Leucophyllae. 



Plants prostrate or decumbent; leaves obtuse or rounded at apex. 

 Plants erect; leaves acute. 



XIII. Watsoniae. 



Represented by only one species in the Pacific States. 



XIV. Hymenelytrae. 



Represented by a single species. 



XV. Polycarpae. 



Represented by a single species. 



XVI. Lentiformes. 



Branches conspicuously and sharply angled, spinose; fruiting bracts obscurely denticulate. 



28. A. Torreyx. 



Branches terete or nearly so, not spinose, or only slightly so in A. lentiginosus. 



Leaves rounded or cuneate at base; tall shrubs, 10-25 dm. high. 



Bracts entire, convex. 29. A. Breweri. 



Bracts crenulate, strongly compressed. 30. A. lentiformis. 



Leaves cordate or subcordate and clasping at base; bracts entire; low shrub, 2-4 dm. high. 



31. A. Parr yt. 



XVII. CONFERTIFOLIAE. 



Leaves broadly ovate or oval, never hastate; body of the bracts small, not constricted beneath the free terminal 

 wings. 32. A. confertifolia. 



Leaves elongate-deltoid and usually somewhat hastate; body of the fruit relatively large and_ distinctly con- 

 stricted beneath the terminal wings. 



8. A. truncata. 



9. A. coronata. 



10. A. argentea. 



11. A. expansa mohavensis. 



12. A. Serenana. 



14. A. pacifica. 



15. A. Coulteri. 



16. A. cordulata. 



17. A. tularensis. 



18. A. Parishii. 



19. A. pusilla. 



20. A. fasciculata. 



21. A. calif ornica. 



22. A. semibaccata. 



23. A. leucophylla. 



24. A. fruticulosa. 



25. A. JVatsonxi. 



26. A. hytnenelytra. 



27. A. poly car pa. 



33. A. spinifera. 



34. A. Nuttallii falcata. 



XVIII. NUTTALLIANAE. 

 Represented in the Pacific States by one species. 



XIX. Canescentes. 



Bracts 7-25 mm. long, the free portion equaling or usually shorter than the wings; leaves over 2 mm. wide. 



35. A. canescens. 



Bracts 4-6 mm. long, the free portion much longer than the wings; leaves 2 mm. or less in width. 



36. A. linearis. 



1. Atriplex hortensis L. Garden Orache or Sea Purslane. Fig. 1501. 



Atriplex hortensis L. Sp. PI. 1053. 1753. 



Stout erect annual, 5-25 dm. high, branches few, ascending, obtusely angled, soon glabrate. 

 Lower leaves opposite, the upper alternate, broadly triangular to oblong-lanceolate, 5-15 cm. 



