6 Rotlirock. — Rudbcckia hirta, L. 



Fig. V is another ray flower. Beside it and to the right 

 one recognizes a perfect tubular flower. From this ray, 

 in the centre, apparently, there arise two organs which 

 probably represent stigmas ; one of these, however, is enlarged 

 above as though it were attempting to form another ray; the 

 other remains thread-like. To the right of these stigmas, 

 indicated by the dotted lines, are two smaller abortive heads. 

 Fig. to shows the remarkable foliar expansion of the stigmas 

 arising from a well-marked tubular flower. 



