40 



SYNGENESIA. 



Achillea. Milfoil, 



870 Millefolium. Yarrow 



native. July, Aug. % 



Order III. FRUSTRANEA. 



Helianthus. 



871 annuus. 



872 indicus. 



873 trachelifolius, 

 Rudbeckia. 



874 laciniata. 



875 amplexifolia. 

 Coreopsis. 



876 verticil lata. 

 Gorteria. 



877 rigens. 



Centaurea. 



878 moschata. 



879 ruthenica. 



880 nigra. 



881 Cyanus. 



882 benedicta. 



Sunflower. 



common, 

 indian. 

 rough leaved. 



Rudbeckia. 

 tall, 

 small. 

 Coreopsis, 

 fine leaved. 

 Gorteria. 

 great flowered. 

 Centaury. 

 Sweet sultan, 

 pale flowered. 

 Black knapweed 

 Blue bottle. 

 Blessed thistle. 



Peru, Mexico. 

 E. Indies, 

 native. 



Oct. 



Sept. 



G 

 O 



Aug. Sept. % 



Greece. 



Siberia. 



.naturalized. 



Europe. 



Levant. 



Aug. Sept. O 



% 



July, Aug. i 

 Sep. O 



O 



Order IV. NECESSARM. 



Milleria. Milleria. 



883 sessiliflor, H.R.M. close flow'ed. S. America. Sep. O 

 Wedelia. Wedelia. 



884 perfoliata. perfoliate. Mexico. 



Calendula. Marigold. 



8b5 arvensis. field. Europe. Aug. Sept. O 



886 officinalis. common. S.Europe. July, O 



Echinops. 

 887 Ritro. 



Order V. SEGREGATE. 



Globe Thistle. 



small. 



Europe. 



Aug, Sept. $ 



