Seed of the foxglove plant

Seed of the foxglove plant

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY

Caption: Scanning electron micrograph (SEM) of a seed of the foxglove plant, Digitalis purpurea, the leaves of which are used to produce the drug digitalin for slowing the pulse rate in treatment of heart disease. One explanation of the highly decorative nature of the foxglove seed's exterior is that the pits, scales, ridges & other forms of ornamentation increase the chances of germination: dust particles are trapped in the spaces, so that when the seed falls on moist ground the additional weight anchors it sufficiently to allow germinat- ion to proceed. Magnification: X 24 for 35mm size, X 170 for 8x10-inch size.

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Keywords: botany, digitalis purpurea, foxglove, nature, part, parts, plant, plants, reproduction, reproductive, scanning electron micrograph, sem, structure

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