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Shepherd's purse fruit, light micrograph

Shepherd's purse fruit, light micrograph

C011/5217

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Credit

DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY

Caption

Shepherd's purse fruit. Light micrograph of a section through a seed pod from a shepherd's purse (Capsella bursa-pastoris) plant. The remains of the stigma can be seen (top centre). This pod is composed of two fused carpels, known as a silicula. The ovary wall is flattened and divided into two by the replum (vertical, centre), with seeds (orange) attached either side. When mature, the pod splits in two from the bottom to reveal the seeds, which are then dispersed by the wind. Magnification: x4 when printed 10 centimetres wide.

Release details

Model release not required. Property release not available.

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