The Biology, Structure, and Systematics of the Cycadales. Mem (57) intermountain A listing of substrates and

A listing of substrates and an index to generic names are also provided

The present study contributes a taxonomic revision of the 29 species of Venezuelan Ruellia

This volume sets out a new infraspecific interpretation of Arcytophyllum

a description of the island group's phytosociology

develop and express theories

The Biology, Structure, and Systematics of the Cycadales. Mem (57) intermountain A listing of substrates andCycads have had considerably less research due to a general perception as esoteric taxonomic relicts. However, renewed interest in the cycads has been quite diverse as evident by the papers included here. This volume represents 21 papers presented at the symposium CYCAD 87 held in Beaulieu sur Mer, France in 1987. Topics cover current research trends on the Cycadales which are loosely catagorized by historical perspective; morphology; reproductive