102 



INDEX. 



CBKA. 

 U. 



Un a, not digested by Drosera, 12i 

 Urine, action on Drosera, 79 

 Utricularia clandestina, 430 



minor, 429 



Utricularia montana, structure of 



bladders, 431 



, animals caught by, 435 



, absorption by, 437 



, tubers of, serving as reservoirs, 



439 

 Utricularia neglecta, structure of 



bladders, 397 



, animals caught by, 405 



, absorption by, 413 



, summary on absorption, 421 



, development of bladders, 424 

 Utricularia, various species of, 441 

 Utricularia vulgaris, 428 



V. 



Veratrine, notion on Drosera, 

 Vessels in leaves of Drosera, 247 



of Dionsea, 314 



Vogel, on effects of camphor on 

 plants, 209 



ZINC. 



W. 



Warming, Dr., on Drosera, 2, 6 



, on roots of Utricularia, 397 



, on trichomes, 359 



, on Genlisea, 446 



, on parenchymatous cells in 



tentaeles of Drosera, 252 



Water, drops of, not causing inflec- 

 tion in Drosera, 35 



, its power in causing aggrega- 

 tion in Drosera, 52 



, its power in causing inflection 



in Drosera, 139 



and various solutions, effects 



of, on subsequent action of am- 

 monia, 213 

 Wilkinson, Rev., on Utricularia, 



398 



Ziegler, his statements with respect 

 to Drosera, 23 

 -, experiments by cutting ves- 



sels of Drosera, 249 

 Zinc chloride, action 

 184 



on Drosere, 



