Liana stem. Polarised light micrograph, of a cross-section through the stem of a climbing liana (Aristolochia tormentosa). Two thin outer tissue layer

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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.

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Size: 4961px × 3543px
Photo credit: © DR KEITH WHEELER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aristolochia, biological, biology, botanical, botany, bundle, bundles, cell, cells, cellular, circle, circular, climbing, creeper, cross-section, cut, cut-, cut-outs, cutout, cutouts, flora, liana, light, lm, micrograph, microscope, microscopy, nature, nutrient, outs, phloem, plant, plm, polarised, polarized, section, sectioned, stem, tissue, tormentosa, transport, transverse, vascular, vine, water, xylem