Mahogany Wood Structure
by Dr Keith Wheeler/science Photo Library
Title
Mahogany Wood Structure
Artist
Dr Keith Wheeler/science Photo Library
Medium
Photograph - Photograph
Description
Mahogany wood structure. Polarised light micrograph of a longitudinal tangential section through a woody stem (xylem) of a mahogany (Swietenia sp.) tree, showing the medullary rays (purple circles with yellow walls). These are full of living wood parenchyma cells. In-between the rays are long xylem tracheid cells (green-orange-blue) which are dead but carry water and mineral salts. The section has cut through a xylem vessel (bright orange-yellow walls) showing scalariform (ladder-like) pits for water to pass laterally. Magnification: x46 when printed 10 centimetres wide.
Uploaded
October 26th, 2019
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