In India orchids are known to occur from Andaman and Nicobar Islands to Himalayas, the maximum number of species are however concentrated in the North-Eastern region where excessive rainfall coupled with warm humid climate and tropical evergreen forests offer the most congenial conditions for orchid growth. Sathish Kumar and Manilal (1994) have reported a total of 166 genera and 1141 species from India of which North-Eastern region alone accounts for more than ...
