Beech tree leaf,light micrograph

Bildnummer 11618996
Beech tree leaf,light micrograph
Beech tree leaf. Light micrograph of a section through the leaf of a common beech tree (Fagus sylvatica),showing the midrib. The midrib has at its centre a horseshoe of vascular bundles,the xylem (red files) is inward and the phloem (brown) is outward. Around the vascular ring is a thick ring of supportive sclerenchyma tissue (deep red) with the ground tissue parenchyma (light brown) surrounding it. Under the two epidermis layers is a flexible supporting collenchyma tissue (red-brown). The leaf lamina has one palisade mesophyll layer (deep red) on top of a lower spongy mesophyll layer (red). The lower epidermis contains stomata (pores). Magnification: x37,when printed 10 centimetres wide
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Wheeler, Dr. Keith
Bildgröße: 4193 px × 4200 px
Modell-Rechte: nicht erforderlich
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