Stinging nettle leaf. Coloured scanning electron micrograph (SEM) of a freeze-fracture of a leaf from a stinging nettle plant (Urtica dioica). Trichomes (hair-like) are seen on the upper and lower leaf surfaces,while the freeze-fracture has revealed the internal cellular structure. Nettles have stinging trichomes (not seen) and non-stinging trichomes (these shorter ones). Magnification: x67 when printed at 10 centimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / PETER BOND, EM CENTRE, UNIVERSITY OF PLYMOUTH |
Taille de l’image : | 4866 px × 3638 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |