SUMMARY 



In the present study, we give, besides the description of the 17 species of 

 Utricularia registered up to the present day for Rio de Janeiro and its neigh- 

 bourhood, sorae interesting notes on their mode of life and the importance of 

 their leaves and utricles for the scientific identification of the species. We state, 

 at the same time, which literature was examined for the systematic part, the 

 only one herein considered, and some notes on carnivourism. 



The key for the recognition of the species was organized, taking into conside- 

 ration all the organs of the plant, that is, including the leaves and the utricules 

 which, as we have tried to demonstrate, are peculiar to all the species. 



"With the exception of those three sipecies which we did not succeed in taking 

 a view of, all the others are reproduced by designs made in natural size, with 

 magnified details. 



