I 



Fig. loi. — Ivy-leaved Duckweed {Lennia t^isidca), with an Hei-atic 

 The Author. {Ricciella Jluitans). See page 364. 



The Author. Fig. 102. — Rootless T>vck\\eeu (JFot/Zia arrhi::n). See /age ^66. 



