210 COMPOSITE. 



VII. SENECIONIDE-^. Involucral bracts in one row 



all the same length or a few shorter outside : pappus of 



fine hairs : anther cells obtuse or with short points, not 



tailed : rays usually yellow : leaves alternate. 



* Heads not rayed. 



Bracts all one length : florets all purple ...... emilta. 



A row outside of shorter bracts : — 



Stylar branches long and hairy gynura. 



Stylar branches ovate at tips : fleshy herbs . . . notonia. 

 ^ * Head rayed or not, stylar branches truncate . senecio. 



English examples : tussilago Coltsfoot ; doronicum. 

 Leopardsbane : senecio Ragwort, Groundsel. 



C. All florets ligulate. 



XI. CICHORIACEi^. All florets ligulate with five-toothed 

 tip : anther bases sagittate but not tailed : stylar arms 

 slender: leaves never opposite. Usually milky herbs. 

 •^ Stems leafy : achenes contracted at both ends. 

 Hispid herbs : pappus hairs feathery or some achenes with- 

 out pappus PicRis. 



Smooth herbs : pappus copious simple, silvery, soft . crepis. 

 * -^ No stem. Leaves all radical, heads solitary on a scape : 

 achenes with long beak bearing simple pappus hairs . 



TARAXACUM. 



English examples : cichorium Chicory ; capsana Nipple- 

 wort ; PICRIS and crepis Hawksbeard ; hieracium Hawkweed ; 

 taraxacum Dandelion ; lactuca Lettuce ; sonchus Sow- 

 thistle ; tragapogon Goatsbeard ; helminthia Oxtongue. 



-^ Branched leafy herbs with heads in open corymbs : inner- 

 bracts of involucre thickened : achenes narrowed at each 

 end. 



Pappus hairs simple PiCRis. 



Pappus hairs feathery . crepis. 



-" -^ Branched herbs : involucre dilated at the base : achenes 

 narrowed below and above. 



Achenes compressed, beaked lactuca. 



Achenes not beaked sonchus. 



* ^ * Heads soHtary on leafless stems. 



Pappus hairs simple . taraxacum. 



Pappus hairs feathery hypoch/eris. 



