II. 



III. 



Galium aparhie: I. part of plant {nntural size), 

 II. flower and fruit (magnified) ; III. longitudinal 

 section through fruit (greatly magnified), p. 77. 



Capitulum of Marigold, with imbricate 

 involucre, p. 80. 



Heracletun sfliondyUvvt : flower and fruit. 

 P 71 



\Ppposite p. 77- 



