Floral adaptations for entomphily:
1. Flowers are large and attractive. When small, they are clustered into an inflorescence (e.g. sunflower)
2. Flowers are brightly coloured, with pleasant fragrance.
3. Production of nectar which serves as food for the insects.
4. Additional modifications for attraction of insects, such as corona in passion flower and petalloid bracts iln Bougainvillea.
5. Pollen grains spiny and sticky for eash adherence to the stigma. Stigma is sticky.
6. Development of special mechanism such as lever mechanism in Salvia to favour insect pollination.