Pollen of Pink Heather

Pollen of Pink Heather

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Caption: False-colour scanning electron micrograph of pollen of Pink Heather, Erica carnea. The pollen grains cluster together in groups of 4 to form a tetrad about 40 micrometres across. The outer wall (exine) of each grain is highly sculptured and has 3 shallow depressions. At the boundaries between the grains there are deep grooves, called germinal furrows. When the pollen, containing the male gametes, lands on the stigma of a flower, it germinates. A pollen tube grows out of the germin- al furrow, down through the stigma, to the ovary. The male nuclei pass down the tube, fertilize the ovules & a seed is formed. Magnification: x55 at 35mm size. Original is BW print B786/162.

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Keywords: botany, erica, erica carnea, grains, nature, pink heather, plant, plants, pollen, reproduction, reproductive, scanning electron micrograph, sem, type

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