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Composites Rudbeckia, 



17. RUDB^CKIA. 



(Including Ecliinacea and Obeliscaria.) 



North American herbaceous perennial plants with simple or 

 pinnate opposite or alternate leaves and showy flower-heads of 

 brightly coloured florets. Keceptacle conical, with chaffy 

 scales at the base of the florets. Achenes quadrangular, with a 

 minute pappus or none. The species number from fifteen to 

 twenty, and all are hardy or nearly so. Named after a 

 Swedish botanist. 



1. R. purptirea, syn. Echinaced serotina, etc. (fig. 130). A 

 plant about a yard high, rough to the touch, with ovate-lanceolate 



Fig. 130. Rudbeckia purpurea. 

 (J nat. size.) 



Fig. 131, Kudbeckia Drumraondii. 

 (J nat. size.) 



obscurely dentate leaves and large flower-heads nearly 4 inches 

 in diameter. The prominent disk is dark brown, and the ray 

 bright reddish purple. R. intermedia, with rather broader more 



