A Study on Stomatal Complex of Certain Epiphytic Orchids

 In the present study stomatal complexes of nine species of epiphytic orchids were studied. All the leaf of selected orchids  are leathery in texure, Hypostomatic condition is predominant, The minimum stomatal index was recorded in Oberonia santapaul 3.83, where  as maximum is in Polystachea  flavascence 17.45. Highest  stomatal frequency was found in Eria mysorensis 12238.32 and  least stomatal frequency is recorded in Gastrochilus acaulis  2725.53 In the present study three major types of stomata,such as paracytic,anomocytic and anisocytic type  of stomata were recorded.