784 LXV. COMPOSITiE. 



Teide I. Vernoniaceae.— -H'earfs with the florets all similar and tuiular. Anthers cleft at 

 the base. Style-branches subulate, hairy. Leaves alternate. 



SuBTRiBE I. Euvernonleffi.— Heads distinct, florets many. 



Aehenes 4 to 5-anglecl, broadly truncate at the apex. Pappus none . 1. Ethulia. • 



Aohenes 8 to lO-ribbed. Pappus bristles fugacious, few or copious . . 2. CENTBATHEnuM. 

 Aehenes thick ; ribs prominent, 10. Pappus bristles short, 3 to 5, 



caducous 3- Pledkocaepsa. 



Aohenes 10-ribbed. Pappus long, copious 4. Vebxosia. 



SuETiUBE II. IiycTxnovi^orese.— Heads of 1 or feic florets, crowded into dense masses like 

 single heads. 

 Corolla usually cleft laterally. Pappus setiB or palete,! to 2-seriate, rigid . 5. Elephaxtopcs. 



Teibe II. UnpSLtoriBiCeae.— Heads with the florets all similar and tubular. Anthers 

 subentire at tlie base. Style-branches obtuse, papillose. J,eaves opposite or alternate. Corolla 

 rarely oranye, never yellow. Pappus usually bnstly. 



SuBTKiBE I. Piqueriese. — Anther-tip truncate. 

 Aohenes a-angled. Pappus of 3 to 5 short bristles, each tip ped by a gland 6. AdesostemMa. 



Subteibe II. AeeTSitem.— Anther.'! appendiculate. Aehenes ribbed, 5-angular, the secondary 

 ones fadinij. 



Pappus paleaceous, the ohafJy scales or bristles 5 to 10, dilated at the 



base 7. Ageratcm. 



Pappus bristles numerous, thin or somewhat rigid, smooth or scabrous . 8. ErpATOEini. 



Tribe III. AsteroidesE.— ifearfs with the florets all similar, or the outer ligulate. Anthers 

 subentire (cells not tailed) at the base. Style-branches flattened or plano-eonvtjr. ail or those of 

 the disk florets terminated by a cone. Leaves alternate or very rarely opposite. Receptacle almost 

 always naked. Dislc-Horets yellow ; ray-florets yellow, white or purple. 



Subteibe I. Grangeines. — Female florets 1 or many-seriate, not ereeeding those of the 

 disk, tubular dentate or icith rudimentary Hyule or campanulate. Pappus Hone or rudimentary, 

 or of feu- very caducous bristles. 



Pappus none. Receptacle naked, turbinate or columnar. Aehenes 

 obtuse, flat, with a thickened border . . 9. Dicheoceph.ala. 



Sobteibe II. Bellides. — Female corollas liyulate, ligula spreadinn. irhite or rarious 

 colours, not yellow. Pappus none or very short. 



Aehenes abruptly contracted at the top into a neck or boss . . . .10. Lagesophora. 

 Aehenes truncate at the top. Pappus none or very short 11. Bracbtcome. 



Subteibe III. Xeterocliroinese. — Corollas of the female florets liyulate. ligula spreading, 

 white or various coloured, never yellow. Disk-Jlorets yellow. Pap2)us bristles long, copious. 



Aehenes of the ray-florets with a capillary pappus, those of the disk 

 mostly abortive, with a reduced or scaly pappus . . .... 12. JIixueia 



Pappus usually of rigid unequal often divaricate awns or spines, some- 

 times accompanied by scales ... 13. Calotis. 



Aehenes terete or slightly flattened. Bay-florets in a single row. Anthers 

 obtuse at the base or shortly pointed. Involucral bracts with scarious 

 margins 14. Oujlkia. 



Aehenes much flattened, all fertile, produced into a slender beak bearing 



a capillary pappus 15. Podocoma. 



Aehenes all fertUe, not beaked, the capillary pappus sessile. 



Style-branches with lanceolate or obtuse tips ... 16. Eeigebos. 



Style-branches with subulate tips . . 17. Vitt.adlsia. 



Subtbibe IV. Conyzese. — Ray-florets very slendei; tubttlar, or with very short ligules, and 

 disk-florets yellow. Pappus copious or scanty, setose. 



Female florets many-seriate. Herbs, undershrubs, or shrubs, not 



glutinous 18. Coxtza. 



Subteibe V. BaCCliarideae. — Flower-hea<is disciform, dicecious, submonieeious, or rareli/ 

 androgynous. Corollas of female florets minute or shortly lignUite. Style in the hermaphrodite 

 florets (stei-ile) undivided or trith filiform branches. Pappus bristly. 



Heads dioecious, the receptacles in both sexes somewhat smooth, naked, 

 or rarely fimbulllferous, subpaleaceous. Female corolla minutelv 

 toothed. Pappus bristles copious, 1-seriate 19. 'Baccharis, 



