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Horsetail cone, light micrograph

Horsetail cone, light micrograph

C002/5802

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80.5 MB (3.4 MB compressed)

3780 x 7444 pixels

32.0 x 63.0 cm ⏐ 12.6 x 24.8 in (300dpi)

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Credit

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

Caption

Horsetail cone, light micrograph. Longitudinal section through a young cone (strobilus) of the rough horsetail (Equisetum hyemale). This is an off-centre section, not passing through the central axis. The structures making up most of the cone are sporophylls consisting of a stalk bearing numerous sack-like hanging sporangia containing the spores. The sporangia consist of large cells (light blue) containing spores (red-black dots). The smaller, hexagonal areas are the stalks. Magnification: x14 when printed at 10 centimetres high.

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Model release not required. Property release not required.

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