For your consideration is a Orchid Species Source Book.  This pamphlet book was compiled by J. F. Spatzek.   The purpose of this compilations was to identify a specific named plant and find out who made the combination of the plant so that you could buy it.  There are over 80 suppliers for purchasing 326 genus and over 3000 species and varieties listed in the book.  Suppliers are all over the world.   I do combine shipping on items purchased on the same day.