J&D ZBAEREN / EURELIOS / SCIENCE PHOTO LIBRARY J&D ZBAEREN / EURELIOS / SCIENCE PHOTO LIBRARY
Leaf anatomy. Light micrograph of a transverse section through a leaf from a Pandanus sp. plant. The thin outermost layer (top and bottom) is the cuticle (blue-green). The next layer is the epidermal layer (orange). Within the interior of the leaf are the vascular bundles (four seen here). These contain xylem and phloem tissues that transport water, sugars, nutrients and hormones around the plant.
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