Description
Bishen Singh Mahendra Pal Singh Orchid Flora of the North West Himalaya With Description an d Illustrations of 240 Species of the Orchids by Deva Som & H B Naithani
The present authors who undertook this job are especially trained in this field and have devoted many years on the study of the orchids. They re-examined all those specimens on which Duthie’s original flora was based and also checked all those which have been described as new since then. As a result of critical study many identifications in Duthie’s flora have been changed and corrected, and it was also found that many of the new additions were based on wrong identifications. Six new species have been added. Almost all the material available from North Western Himalaya at F.R.I. Herbarium, Dehra Dun & Botanical Survey of India Herbarium, Dehra Dun has been included.