VA SCULAR PLANTS. 25 



12. Baccharis, L. 



Dioecious. Head without ray flowers. Scales 

 of the involucre x-seriate, imbricate. $ cor- 

 olla tubular, with 5 -cleft limb. Pappus capil- 

 lary, 1-seriate. ? corolla filiform, truncate; 

 pappus copious, capillary. 



2£. *?. 

 Tribe II Inuleae. 



Anthers with tails (sagittate). Style branch- 

 es without appendages. 



13. Pluchea, Cass. 



Superflua. Necessaria. Head oo-flowered. 

 ? flowers x-seriate, tubular. Scales of the in- 

 volucre oo-striate, ovate, imbricate. Receptacle 

 flat, naked. Pappus 1-seriate, capillary. 



U . flowers rosy. Salt marshes. 



i-t. Adenocaulon, Hook. 



Necessaria. Head few-flowered, all the flow- 

 ers tubular. Anthers sagittate, not tailed. 

 Scales of the involucre 5, 1-seriate, herbaceous, 

 at length reflexed. Receptacle flat, naked. 

 Akenes exserted, obovate, glandular near the 

 summit ; pappus 0. 



0. flowers pale. 



15. Micropus, L- 



Necessaria. Superflua. Head few-flowered, 

 all flowers tubular. $5, ? 5, embraced by 



