CONTENTS 



Page 

 The Vegetation of the Sea 1 



How to Collect Seaweeds 6 



Preservation of Seaweed Collections 10 



What to Look For 16 



Vegetative Structure 16 



Reproductive Structure 20 



Use of Pictured-Key 26 



Additional References 27 



Pictured-Key to the Common Genera of Macroscopic 

 Marine Algae of the United States 28 



Marine Flowering Plants 180 



Phylogenetic List of Genera and FamiHes 186 



Index and Pictured-Glossary 192 



