Pollen grains

Pollen grains

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Caption: Pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains from a hazel tree (Corylus sp.). There is great variation in the size, shape and surface texture of pollen. The outer wall is highly sculpted in many plants, which assists in dispersal. The characteristic surface of a plant's pollen grains is used by botanists to recognise and classify species. Each pollen grain contains a male gamete, which fertilises the eggs or ovules, initiating the formation of plant seeds. Magnification unknown.

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Keywords: biology, botany, coloured, corylus sp., flora, green, hazel tree, male gametes, many, multiple, nature, plant, plants, pollen grains, reproduction, reproductive, scanning electron micrograph, sculpted, sem, surface, wildlife

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