Shreyaa Sharma is teaching live on Unacademy Plus
POLLINATION LESSON 4 PRESENTED BY - SHREYAA SHARMA
HYDROPHILY Gk. Hydor- water, Philein - to love Definition :- It is the mode of pollination or transfer of pollen grains from the mature anther of a flower to the stigma of another flower which is accomplished through the agency of water. Example - Vallisneria, Zostera, Ceratophyllunm Example- Vallisneria, Zostera , Ceratophyllum
CHARACTERISTICS OF WATER POLLINATED FLOWERS Flowers are small and inconspicuous MALE PISTILLATE FLOWERS Perianth and other floral parts are WATER LEVEL unwettable Nectar and odour are absent VPollen grains are light and due to presence of mucilage cover Stigma is long , sticky and unwettable STAMINATE FLOWERS
ZOOPHILY Gk. Zoon-Animal, Philein - to love It is the pollination through the agency of animals The most common type of animal pollinators are insects others being birds, bats , snails, arboreal rodents , reptiles , etc. The zoophilous flowers are often adapted to be pollinated by a particularly type of animal
CHIROPTEROPHILY Definition :- n brought about by bats. The bat is a nocturnal flying mammal and hence it is the most common method of pollination in night blooming flowers Example- Kadam Tree , Baobab tree , etc.
CHARACTERISTICS OF CHIROPTEROPHILOUS FLOWERS V Usually dull coloured with strong fruity odour Produce abundant nectar and pollen grains. Flowers are large and stout.