PREFACE
INTRODUCTION
THE BRACKEN GROUP
THE SPLEENWORTS
HART'S TONGUE
WALKING FERN. WALKING LEAF
THE SHIELD FERNS
THE MARSH FERN TRIBE
THE BEECH FERNS
THE FRAGRANT FERN
KEY TO THE WOOD FERNS
THE WOOD FERNS
THE BLADDER FERNS. Cystópteris
KEY TO THE WOODSIAS
THE WOODSIAS
II
THE FLOWERING FERN FAMILY
OSMUNDÀCEAE
III
CURLY GRASS FAMILY
SCHIZÆÀCEÆ
IV
ADDER'S TONGUE FAMILY OPHIOGLOSSÀCEÆ
KEY TO THE GRAPE FERNS
GRAPE FERNS
V
THE FILMY FERN FAMILY HYMENOPHYLLÀCEÆ
NOTED FERN AUTHORS
BIOGRAPHICAL SKETCHES
GLOSSARY
CHECK LIST OF THE FERNS OF NORTHEASTERN AMERICA
