Name: Pollination
Uploaded: 2019-07-19
Duration: 5 min 53 s
Description: Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. Here, learn more about pollination and its types.

Question

Mention characteristics of entomophilous and anemophilous flowers.

Accepted Answer

The characteristics of entomophilous flowers are listed below:

The flowers are large-sized and brightly coloured to attract the insects.

When flowers are not conspicuous, other parts become coloured and showy. For example, in Bougainvillaea bracts become colourful.

They produce nectar or scent which attracts insects, as in jasmine.

Some flowers bear markings or lines on the petals which act as nectar guides that lead the insects to the nectaries, as in pansy.

The pollen grains of entomophilous flowers are either rough or sticky so that they adhere to the body of insects easily.

The stigma is sticky, flat or lobed.

When the flowers are small, they form inflorescence to make them conspicuous and attractive.

The characteristics of anemophilous flowers are listed below:

The flowers are usually small, inconspicuous and unattractive.

They do not produce scent or nectar.

The anthers produce large quantity of pollen grains.

The stamens are long and protrude out of the flower to be exposed to wind.

Anthers are large protruding out of the flowers and loosely attached to the long filaments so that they can easily be moved by the wind.

The pollen grains are smooth, light and dry and sometimes provided with wings as in pine so that they can be easily carried by wind to long distances.

Stigma is comparatively large, branched and often feathery to trap the pollen grains.

Mention characteristics of entomophilous and anemophilous flowers.

Important Questions on Pollination and Fertilisation

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