33 (32) Leaves in close tiers, oblong or oblong-ovate, not nar- 

 rowed at base, resembling a Chinese pagoda; plants 

 forming large compact clumps or cushions; plants of 



the beach Arenaria peploides 



var. robusta, Sandwort 



Figure 34. — Apical portion of stem 

 and leaves XI- 



33 (32) Leaves not in close tiers; coarse strag- 

 gling weedy species, both somewhat gray 

 and scurfy, especially young leaves; op- 

 posite branching frequently only at base; 

 flowers greenish, both plants usually on 

 the beach Atriplex. . . A 



A (33) Principal leaves hastate or ar- 

 row-shaped A. patula 



var. hastata. Orach 



A (33) Leaves broadly oval, stems 



usually reddish A. arenaria, 



Sand Orach 



Figure 36.— Leaf Xl%. 



Figure 35.— Leaf XL 



34 (31) Leaves linear-lanceolate, alternate in a ro- 

 sette, erect or strongly ascending; flowers 

 from an erect spike from the rosette; plants 



of the tidal marsh Plantago, Seaside Plantain. . . A 



A (34) Bracts or sepals or both mi- 

 nutely ciliate; flower spike 

 dense with flowers to base; 

 flower stalk exceeding leaves. 

 P. juncoides 



A (34) Bracts and sepals glabrous; 

 flower spike remotely flow- 

 ered at base; leaves equaling Figure 37.- 

 or exceeding the erect flower 

 stalk P. oliganthos 



-(a) Habit sketch; 

 (b) terminal portion 

 of leaf X Vz. 



18 



