Explanatioix of Pl. XIX. 



NerviUa jnirpurca (Hayata). 



Fig. 1. Tlii; plaut with a leaf. 



2. A iwrtiou of a leaf, sho^iug himellate haiis. 



:!. The plaut with :i soape. 



4. Autither scape. 



5. A Up. 



C. A cuhiiuu, seeu froui side. 



7. Apical jxirtiou of the Siiuie, aiither hfted. 



8. A cohuuu, seeu froui back. 



9. Au ovary. 



