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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 4961 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |