EXPLANATION OF THE PLATES. 

 Plates II-III. — Maidenhair. Adiantum pedatum. Plate II. — i. 

 Young plant attached to prothallus. 2-8. Young leaves in early stages of 

 development. Plate III. — 9-1 1. Leaves in later stages of development. 12.. 

 Fertile leaflet of mature leaf, X 2J. 



