Common horsetail stem. Light micrograph of a longitudinal section through the tip of the condensed stem of the giant horsetail (Equisetum telematia),showing the central stem sourrounded by stem leaves. The stem contains one circle of vascular bundles and many canals | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wheeler, Dr. Keith |
Taille de l’image : | 2480 px × 3720 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |