434 



COMPOSITE.. 



Achenes without a thickened 

 border. 

 Pappus 0, flowers 'rose-pur- 

 ple 7. Ctathocline. 



Pappus cup-like, flowers yel- 

 low 8. Geangea. 



Heads with distinct ray-flowers. 



Corolla of ray -flowers lijjulate, never 

 yellow . . . . . . 9. Ebigeeon. 



Flowers all yellow, those of the ray 

 slender, tubular, rarely (in Conyza) 

 with short ligules. 



Pappus long, copious . .10. Conyza. 



Pappus short, scanty, dilated at 

 the base . . . .11. Thespis. 



'TRIBE IV.— INULOIDE^. Heads with the flowers all similar and 

 tubular (except in Inula and tulicaria) Anther-cells tailed. 

 Style-arms linear, obtuse, or styles of the sterile flowers undivided.* 

 Flowers all yellow [(except in Blumea and Pluchea). Leaves alt. 



, Heads androgynous ; in vol- bracts dry or 

 herbaceous, rarely subscarious ; recep- 

 tacle naked, style-arms of 2-sexual 

 flowers filiform, not truncate ; style of 

 sterile flowers entire. 



Heads corymbose or panicle d, not in 

 globose masses (except in some 

 Blumeas); pappus copious. 



Invol-bracts narrow. Herbs. 

 Anther'cells tailed . . 12. Blumea. 



Anther-cells not tailed . . 13. Laggera. 



Invol-bracts broad. Shrubs or 

 undershrubs . . . .11. Pluchea. 



Heads in dense globose or ovoid 

 masses, cor. of fem. flowers fili- 

 form ; pappus 0. A herb with 

 winged stems . . . .15. Sph^rantkus. 



Heads androgynous, often in dense , ^ 



clusters ; invol-bracts scarious or hya- 

 line ; ray-flowers fem., numerous, fili- 

 form, often inclosed in the long outer 



