CONTENTS— PART I 



Introduction _ __ 1 



Literature Cited 3 



Key to the genera* 17 



Calobryaceae Goebel 21 



Calobryum C. G. Nees 21 



Blepharostomaceae K. Miiller 22 



Pseudolepicoleaceae Fulford & J. Taylor 22 



Pseudolepicolea Fulford & J. Taylor 22 



Herzogiariaceae Fulford 25 



Herzogiaria Fulford 27 



' Vetaformaeeae Fulford & J. Taylor 27 



Vetaforma Fulford & J. Taylor 28 



Lepicoleaeeae Schuster 30 



Lepicolea Dumortier 31 



Trichocoleaceae Nakai 40 



Trichocolca Dumortier _._ 40 



Temnoma Mitten 53 



Chaetocholeaceae Fulford 62 



Ckaetocolea Spruce 62 



Isotachaeeae R. Hatcher 63 



Isotachis Mitten 66 



Pachyglossaceae Fulford __ 80 



Pachyglossa Herzog & Grolle 80 



Herbertaceae K. Miiller 85 



Trwndrophyllum Fulford & Hatcher 85 



Eerberta S. F. Gray __ 90 



Lepidoziaceae H. Arnell* 106 



Bazzania S. F. Gray 106 



*The key includes all the South American genera of the Lepidoziaceae ; only the genus 

 Bazzania is included in this part. The remaining genera of this family will make Part IT. 



