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Stinging nettle stem, light micrograph

Stinging nettle stem, light micrograph

C002/9760

Rights Managed

54.5 MB (54.0 MB compressed)

4742 x 4016 pixels

40.1 x 34.0 cm ⏐ 15.8 x 13.4 in (300dpi)

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Credit

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

Caption

Stinging nettle stem. Polarised light micrograph of a transverse section through a stem of the stinging nettle plant (Urtica dioica). The layers from outer to centre (some very thin) are an epidermis (outer layer), collenchyma (light-blue), parenchyma (black with starch grains), phloem fibres (bright blue), phloem (dark yellow), cambium (violet), and xylem (yellow). There are medullary rays (black) in the xylem. The pith has broken down, leaving a central gap. Magnification: x5.5 when printed at 10 centimetres wide.

Release details

Model release not required. Property release not required.

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