Christmas cactus flower pollen grain, SEM

Christmas cactus flower pollen grain, SEM

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Credit: SCIENCE PHOTO LIBRARY

Caption: Christmas cactus flower pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from a christmas cactus flower (Schlumbergera truncata) . Pollen grains are the male gametes (sex cells) of a plant. Magnification: x1340 when printed 10 centimetres wide.

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Keywords: 1, angiosperm, angiosperms, biological, biology, botanical, botany, christmas cactus, coloured, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, exine, false-colour, false-coloured, flora, flowering plants, gamete, hole, holes, male, nature, one, parts, pollen grain, pore, pores, reproduction, reproductive part, scanning electron micrograph, scanning electron microscope, schlumbergera truncata, sem, sex cell, single, spike, spikes, spiky, succulent

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