LXX. COMPOSITiE. 171 



bracteolate. Corolla witli a short tube and bell-sliaped, 5-cleft 

 limb. Acbenes angular. Pappus of many rough bristles. — 

 Fl. Cap. iii. p. 58. 



Mostly climbing herbs or shrubs of hot countries, chiefly American. 

 Leaves opposite, petioled, mostly cordate or sagittate. Heads corymbose ; 

 corolla pale. — 2 Cape species, both Eastern. 



Tribe 3. AsTEEOiDEiE. (Gren. 11-38.) 



SUBTBIBE ASTEEE^. (GrCn. 11-24.) 



11. ALCIOPE, DC. 



Heads many-flowered, radiate; ray-flowers ligulate, 1-seriate, 

 female ; disk-flowers 5-cleft, complete. Receptacle nude. In- 

 volucral scales imbricate, linear, appressed. Style of disk- 

 flow^ers deeply 2 -fid, its arms linear, divergent, semiterete, 

 obtuse, dorsally puberulous. Acbenes linear-oblong, angular, 

 subcompressed, pubescent. Pappus of slender, rough bristles 

 in many rows, deciduous. — Fl. Cap. iii. ^. 60. 



Branching, erect, South African undershrubs. Stems clothed with close, 

 white wool. Leaves alternate, petioled, entire or toothed, coriaceous, woolly 

 beneath. Heads large, ending long branches. — 2 species, both Western. 



12. AMELLUS, Cass. 



Heads many-flowered, mostly radiate ; rays 1-seriate, female 

 and fertile ; disk-flowers 5-toothed. Eeceptacle bearing paleae 

 between the flowers. Involucral scales imbricate, rigid, the 

 inner like the paleae. Achenes wedge-shaped, compressed, 

 those of the ray somewhat 4-angled, of the disk smooth, rough- 

 edged. Pappus of ray of a few, short, unequal scales ; of disk 

 double, the outer similar to that of the ray, the inner of 4-5 

 scabrous, deciduous bristles. — Fl. Cap. iii. p. 61. 



Small South African annuals or rigid perennials. Lower leaves opposite, 

 upper alternate, oblong, entire or few-toothed. Heads terminal ; rays blue ; 

 disk yellow. — 8 species, dispersed. 



13. MAIREA, DC. 



Heads many-flowered, radiate ; rays female and fertile ; 

 disk-flowers 5-tootlied, fertile or sterile. Receptacles nude. 

 Involucre subimbricate. Anthers simple at base. Achenes 

 piano-compressed. Pappus in 1 row, uniform, of several 

 feathered (plumose) bristles.- — Fl. Cap. iii. p. 64. 



South African perennials or small shrubs, of various habit. Leaves 

 alternate. Peduncle 1-hcadcd or rarely corymbose. Disk yellow ; rays 

 purple blue or white ; very rarely yellow. — 10 species, dispersed. 



