Compiled and written for advanced students, this encyclopedia contains a comprehensive treatment of the taxonomy of the families and genera of ferns and seed plants. The present volume, the sixth in this series, deals with five groups of dicotyledons, the Celastrales, Oxalidales, Rosales, Cornales, and Ericales, comprising 48 families.

This is the long-awaited second volume of Godfrey and Wooten's definitive survey of aquatic and wetland plants of the southeastern United States. It focuses on native and naturalized dicotyledons of the region and provides well-written, concise descriptions and keys for the identification of 1,084 species. A glossary of terms, list of references, separate indexes of common and scientific names, and nearly 400 well-executed drawings complete the volume. The first comprehensive survey of the aquatic and wetland plants of the Southeast, the Godfrey and Wooten volumes will prove invaluable to botanists, ecologists, college students, government agencies involved in land-use management, and nonspecialists interested in the plant life and ecology of the region.