18 Cephalozia. 



conspicuous as the ubiquitous Lejeunece and PlagiochilcB, in proof of whicli 

 I need only adduce the following facts. Of Cephalozia and its subgenera 

 I know of only 17 species on the Amazon and Andes — all but one (C. 

 Crosslin, sp.) gathered there by myself; whereas of Lejeunea and its 

 subgenera I have gathered with my own hands in the same regions no 

 fewer than 224 species ! 



