Part one of a two-part guide to the vascular plants of central French Guiana. In this installment, 12 species of lycopods (Lycophyta), 182 species of ferns (Pte

"Packer and Gould have provided an invaluable service for anyone interested in western North American botany by creating a simple, user-friendly and portable ke

The recent discovery of diverse fossil flowers and floral organs in Cretaceous strata has revealed astonishing details about the structural and systematic diver