Liana Stem #4
by Dr Keith Wheeler/science Photo Library
Title
Liana Stem #4
Artist
Dr Keith Wheeler/science Photo Library
Medium
Photograph - Photograph
Description
Liana stem. Polarised light micrograph, of a cross-section through the stem of a climbing liana (Aristolochia tormentosa). Two thin outer tissue layers contain collenchyma (green) and parenchyma (blue). This is followed by three thin vascular layers: the outer fibre bundles (orange); phloem (deep blue); and cambium (black). A larger vascular layer is the xylem (pink), with medullary rays (blue) passing through it to the central pith (blue) of parenchyma cells. Magnification: x44 when printed at 10 centimetres across.
Uploaded
August 3rd, 2020
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