FIG. 445. A-C,Houstoniap\irpurea. D, E, Lonicera sempervirens. F, Viburnum 

 sp. G-J, Valeriana officinalis. H, young, /, older, flower. J, section of ovary, 

 showing two abortive carpels. K-M, Dipsacits sylvestris. 



an 



J an 



FIG. 446. A-C, Campanula Americana. A, section of bud. B, open flower, show- 

 ing the withered stamens and receptive stigma. D, C. Carpatica. E-H, Lobelia 

 cardinalis. I-K, Cucumis sativus. 



