Red Clover pollen

Red Clover pollen

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Caption: Red Clover pollen. Coloured scanning electron micrograph (SEM) of pollen grains of Red Clover, Trifolium pratense. The outer wall (exine) of each grain has a netted ornamentation, and there are grooves called germinal furrows. These pollen grains are wind dispersed. When a pollen grain, containing the male gametes, lands on the stigma of a flower, it germinates. A pollen tube grows out from the furrow, down through the stigma, to the ovary. The male nuclei pass down this tube, fertilize the ovules and seeds are formed. Magnification: x1,425 at 5x7cm size.

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Keywords: botany, circular, grains, gray, grey, many, multiple, nature, plant, plants, pollen, red clover pollen, reproduction, reproductive, rounded, scanning electron micrograph, sem, trifolium pratense, wind dispersed

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