The Biology, Structure, and Systematics of the Cycadales. Mem (57) NYBG PRESS and a key is provided

and a key is provided to separate the genera

A new species is described and illustrated and two new combinations are made

but substantial original material of some species is located in FH

and Laird examines the cases of several plant species valued in traditional and contemporary medicine

It is for these reasons that the research on the genus Persea here presented was undertaken

The Biology, Structure, and Systematics of the Cycadales. Mem (57) NYBG PRESS and a key is providedCycads 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