Winged pollen grain is the characteristic fea | vedclass

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(D) In the genus $Pinus$,the pollen grains are winged,which is known as 'saccate' pollen. These wings are formed by the expansion of the exine (outer

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Pinus

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(D) In the genus $Pinus$,the pollen grains are winged,which is known as 'saccate' pollen. These wings are formed by the expansion of the exine (outer layer of the pollen wall) and help in the dispersal of pollen grains by wind (anemophily). $Cycas$,$Ephedra$,and $Gnetum$ do not possess winged pollen grains.

Winged pollen grain is the characteristic feature of

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