Seed of the Begonia plant

Seed of the Begonia plant

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Caption: Scanning electron micrograph (SEM) of a seed of the greenhouse & houseplant, Begonia rex, popular for its colourful foliage. A tiny seed ("dust seed"), there are 1 million to the ounce (28 grams), each containing an embryo & its food supply (endosperm) awaiting conditions for germination. It is thought that the decorative exteriors, the pits & ridges, increase the chances of germination. Soil particles become trapped in the spaces so that when the seed falls on damp ground the additional weight anchors it suffic- iently for germination to procede. Magnification: X 46 at 35mm size, X 320 at 10x8-inch size.

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Keywords: begonia rex, botany, nature, part, parts, plant, plants, reproduction, reproductive, scanning electron micrograph, sem, structure

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