Describe the translator mechanism of cross pollination.

Explanation

Pollination in Calotropis:
(i) This mechanism found in members of Asclepiadaceae.

(ii) The flowers are bisexual with 5 stamens forming gynostegium (union of stigma with the androecium).
(iii) The stigma is large and 5 - angled and is receptive on the underside.
(iv) Each stamen at its back possesses a brightly coloured hood like outgrowth enclosing horn shaped nectar.
(v) The pollen in each anther lobe of a stamen unites into a mass, forming a pollinium.
(vi) Pollinia are attached to a clamp or clip like stickly structure called corpusculum.
(vii) The filamentous or thread like part arising from each pollinium is called retinaculum.
(viii) The whole structure looks like inverted letter 'Y' and is called translator.
(ix) When the insect visits the flower for nectar, the translator gets attached to the proboscis or leg of the visitor.
(x) During the visit to the next flower the pollinia come in contact with the receptive stigma carrying out pollination.