In writing this book I have attempted to produce exactly the kind of Flora that for twenty to thirty years I have wanted for my own use.

Preface.

The following paragraphs are intended to explain the contents and arrangement of the Flora and the reasons for the various conventions adopted and decisions taken.

Introduction.

It is strongly recommended that, before consulting the information in this book, the contents page, the introductory chapter and this page (including the reverse of it) be read carefully.

How to use this book.

Herbaceous plants with simple or sparingly branched stems and single leaves with 1 vein.

LYCOPODIOPSIDA - CLUBMOSSES AND QUILLWORTS
(Lepidophyta, Lycopodineae, Lycopsida).