Horsetail spores. Coloured scanning electron micrograph (SEM) of spores of a horsetail (Equisetum arvense) plant. The spores (round) bear elaters (hel

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Horsetail spores. Coloured scanning electron micrograph (SEM) of spores of a horsetail (Equisetum arvense) plant. The spores (round) bear elaters (helical), which expand and contract with changes in humidity. Elaters help to tangle spores together into a clump called a propagule, and to dig the spores into the soil. Magnification: x350 when printed 10 centimetres wide.

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Size: 4209px × 4209px
Photo credit: © POWER AND SYRED/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: arvense, biological, biology, botanical, botany, coloured, cut, cut-, cut-outs, cutout, cutouts, dispersal, elater, elaters, equisetaceae, equisetopsida, equisetum, false-colour, false-coloured, family, fern, flora, horsetail, nature, outs, plant, pteridophyta, pteridophyte, pteridophytes, reproduction, reproductive, sem, sphenopsida, spore, spores