Victorian Plants. 317 



1430. Leaves cylindric-linear. 



Much beset with very short but usually rigid and spreading 

 hairlets ; leaves from rather short to comparatively 

 long, crowded, mostly rough above ; headlets of flowers 

 narrow, in corymbously contracted panicles ; involucral 

 bracts without lustre outside ; flowers from few to several 

 within each involucre. C. aculeata. 



Leaves from narrow- to elongate-lanceolar. 



Imperfectly beset with a short vestiture ; leaves always 

 comparatively long, glabrous and smooth above, flat or 

 somewhat recurved at the margin ; headlets of flowers 

 narrow, in corymbously contracted panicles ; involucral 

 bracts without lustre outside ; flowers few or several 

 within each involucre. C. longifolia. 



XXODIA. 



1431. Involucres from the base to the petaloid ray green, 



viscid-shining. 



Shrub, finally rather tall, glabrous ; leaves from broad- 

 linear to narrowly elongate-lanceolar, sessile ; headlets 

 of flowers corymbously crowded ; involucral bracts 

 appressed ; corollas whitish or somewhat purplish ; 

 fruits papillular-rough. I. acliilloid.es. 



AXKlKOBXTTttX. 



1432. Involucral bracts nearly all upwards white and most 



of them soon spreading. 



Erect, rather tall herb ; branches lined with leafy ex- 

 pansions ; lower leaves lanceolar, flat, much decurrent 

 011 their elongated stalk ; upper leaves gradually smaller, 

 distant, sessile ; headlets of flowers comparatively large ; 

 fruits angular. A. alatum. 



ATKRXXIA. 



1433. Corollas of marginal flowers without any ligular 



expansions. 



Annual, dwarf, somewhat beset with interwoven hairlets ; 

 upper leaves linear, revolute along the margin ; lower 

 leaves broader and flattened ; headlets of flowers small, 

 on elongated rigid thread-like dark-colored stalks ; in- 

 volucral bracts ciliolated ; marginal non-stamiiiate flowers 

 few ; bristlets of pappus very few, plumously expanded 

 towards the summit. A. teuella, 



