Authored by Robin Graham with Ronald Roy. Published by A.H. & A.W. Reed of Wellington in 1983. Hard cover bound with cream boards, this First Edition copy is in Fine condition with a Fine dust jacket. The size of the book is 375x267x19mm with 109 pages including index, bibliography and appendix. ISBN 0589013874. Keywords: Brachypetalum, Gonatopedilum, Coryopedilum.