Abstract
Abstract The flowers of Anisomeles indica and A. malabarica are zygomorphic, bilabiate, gulletshaped and nectariferous, and are visited by insects as well as birds for nectar and/or pollen. The bees Xylocopa latipes, X. Pubescens, Amegilla sp., Apis florea and Megachile sp., and the sunbirds of the genus Nectarinia are the principal pollinators of A. indica, while the former three and the last and the wasp Rhynchium metallicum are for A. malabarica. Pollination by Xylocopa and Nectarinia is nototribic and that by Apis, Megachile, Amegilla is noto‐ and/or sternotribic. The small bodied Trigona, Pseudapis and Ceratina collected pollen sternotribically. It is concluded that adaptation of both species to insect and bird pollination and to a flexible breeding system involving both selfing and crossing, safeguards their survival under changing environments.
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