Heather leaf, light micrograph

Heather leaf, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Heather leaf. Light micrograph of a transverse section through the leaf of a heather (Erica sp.) plant. Heather is a drought plant (xerophyte). Xerophytes have evolved an anatomy that cuts down water loss through transpiration. The epidermis consists of thick-walled cells covered in a thick cuticle (light-pink). Underneath this are the cells of the palisade mesophyll and spongy mesophyll containing chloroplasts where photosynthesis takes place. Magnification: x234 when printed 10 centimetres wide.

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Keywords: adaptation, adaptations, adapted, angiosperm, angiosperms, arid, biological, biology, botanical, botany, cell, cells, cuticle, drought plant, dry, epidermis, erica sp., flora, heath, heather, leaf, light micrograph, light microscope, nature, palisade mesophyll, plant, plants, spongy mesophyll, stem, tissue, xerophyte, xerophytic

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