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| cross section of petiole at 25x showing vascular bundle. | cross section of petiole at 25x showing xylem, phloem, and epidermis. |
Result:
Petiole
The epidermis of petiole also contains multicellular trichomes. Just like the midrib of the leaf, isodiametric parenchyma cells surround the vascular bundle. The xylem has semicircular shape which is similar to the vascular bundle presents in the midrib.
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| cross section of petiole at 25x showing vascular bundle. | cross section of petiole at 25x showing xylem, phloem, and epidermis. |
compare the similarity between vascular bundle in petiole and midrib.
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| cross section of midrib showing the vascular bundle: xylem and phloem. |
