Contains keys to all the orchid genera in the region and most of the orchid species, emphasizing features that can be readily seen with the naked eye or a hand ... » 

Contains keys to all the orchid genera in the region and most of the orchid species, emphasizing features that can be readily seen with the naked eye or a hand lens. Includes 240 color photos and 229 line drawings. Written in an accessible style, with introductory chapters on the geography of the re «