Scots Pine (pinus Sylvestris) Stem
by Dr Keith Wheeler/science Photo Library
Title
Scots Pine (pinus Sylvestris) Stem
Artist
Dr Keith Wheeler/science Photo Library
Medium
Photograph - Photograph
Description
Scots pine (Pinus sylvestris) stem. Light micrograph of a section through the epidermis removed from a stem of a Scots pine tree. Groups of star-shaped crystals (black-white) of calcium oxalate, known as druses, can be seen scattered throughout the tissue, along with stomata (pores, round, white), their guard cells (sausage-shaped) and slightly plasmolysed cytoplasm with chloroplasts, nuclei and vacuoles. Magnification: x37 when printed 10 centimetres wide.
Uploaded
September 25th, 2019
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