238 



GENUS ATRIPLEX. 



Fio. 29. — Phylogenetic chart oi the subgenera and smaller divisions of Alriplcx. The relative size oi the circlesTjhafi no 

 significance. Large groups of species are sometimes indicated by small circles in order to bring the whole chart 

 within the limits of the page. Tnese groups are diagrammed in detail as follows: group of A. puaitlus, fig. 33, 

 p. 270; group of .4. truncata. fig. 35, p. 278; group of A. pentandra, fig. 39, p. 294;'group of dioecious shrubs, fig. 

 43, p. 314. 



