Victorian Plants. 65 



Flowers within each involucre of two forms. 



Shrubs or half -shrubs ; leaves scattered ; involucral bracts 

 almost herbaceous, in several rows ; central flowers within 

 each headlet with less slender corollas than those of the 

 marginal flowers, also less fertile, or both kinds of flowers 

 sometimes in distinct headlets ; corollas all tubular to near 

 the summit ; pappus-bristlets in one row. Pluchea. 1337 



319. Involucral bracts in more than one row ... ... 320 



Involucral bracts in one row ... ... ... ... 361 



320. Corollas of the marginal flowers from a tubular base 



flatly expanded. (Also Podolepis partly) ... ... 321 



Corollas of all the flowers tubular to near the summit 327 



321. Pappus elongated ... ... ... ... ... 322 



Pappus abbreviated or absent 326 



322. Pappus consisting partly or wholly of spinules. 



Herbs ; leaves basal and often also scattered, seldom dis- 

 sected ; involucral bracts almost herbaceous ; ligulate 

 flowers uniseriate, their corollas forming a bluish or 

 whitish or yellowish ray ; pappus consisting of two or 

 often more spinules, with or oftener without intervening 

 scale-like segments ; fruits angular. Figure 80. 



Calotis. 1338 



Pappus consisting of hair-like bristlets or partly of 

 bristlets and partly of scale-like segments ... ... 323 



323. Pappus consisting partly of bristlets and partly of 



scale-like segments. 



Herbs or somewhat shrubby plants ; leaves scattered, always 

 narrow ; involucral bracts almost herbaceous, narrow, in 

 few rows ; ligulate flowers pluriseriate, their corollas 

 forming a whitish or bluish or less frequently a yellowish 

 ray ; fertile fruits compressed, circumferential ; scale-like 

 segments of the pappus often only rudimentary. Figure 79. 



Minuria. 1348 



Pappus consisting of hair-like bristlets exclusively ... 324 



p 



