Dog Rose Stem #2
by Science Photo Library
Title
Dog Rose Stem #2
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Dog rose stem. Polarised light micrograph of a cross-section through the stem of a dog rose (Rosa canina) plant. The outer cortex (red) is made of cork cambium tissue, beneath which is a ring of phloem and sieve tube bundles (pale blue). Under this is a ring of cambium (red) and then woody fibres (palegreen). The solid pith (bottom, yellow and blue) is composed of large parenchyma cells. Magnification: x44 when printed 10 centimetres wide.
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August 4th, 2020
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