50.0 MB (666.3 KB compressed)
4825 x 3619 pixels
40.9 x 30.7 cm ⏐ 16.1 x 12.1 in (300dpi)
GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Thistle stem hairs. Light micrograph of a section through a flower stem of a spiny sow thistle (Sonchus asper) showing two hairs. Magnification: x45 when printed at 10 centimetres wide.
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