CONTENTS. 
PART 1. 
EXPLANATION OF THE NATURE AND STRUCTURE OF THE PARTS OF 
FERNS ON WHICH GENERA ARE FOUNDED AND CLASSIFIED. 
1. Nature and number of Ferns . 
2. Organography.—Definitions of the vice of yeu on which 
genera are founded and classified — . i " 
3. On the genera of early authors, and their oisi of dauid: 
fication  . e n ` ` e 
4, On the genera of modern authors, a review of their itd 
of classification è ‘ i $ 
5. On the genera and their gengt as founded on | their 
modes of growth and habit — . e . å : . 
PART 2. 
PAGE. 
1 
61. 
General arrangement and characters of tribes and genera, with 
remarks on their relationship one to another, and the 
number of species. : ; í - b 77 to 
PART 3. 
. On the reproduction of Ferns. » e ee 
` On the geographical distribution of fuss Rr a ‘ é 
3. On the properties and uses of Ferns . e . 
PART 4. 
. 1. Names of writers on Ferns, and their works . s i 
$. Etymology.—Derivations of generic names adopted in this 
= 8. Alphabetical list of genera it adios uit íi logie oa we 
` 4 Index to the tribes and genera adopted in this work 
370 
