50.2 MB (5.8 MB compressed)
4674 x 3756 pixels
39.6 x 31.8 cm ⏐ 15.6 x 12.5 in (300dpi)
SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY
Leaf midrib. Coloured scanning electron micrograph (SEM) of a section through the midrib of a leaf from a Camellia sp. plant. The midrib (midvein) is the continuation of a leaf's stem along the centre of the leaf. Within the midrib is a vascular bundle (yellow), composed of xylem (centre) and phloem (outer) cells, which transport water and carbohydrates around the plant respectively.
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