Marram grass leaf. Coloured scanning electron micrograph (SEM) of a transverse section through a leaf of marram grass, Ammophila arenaria. The leaf su
Image details
Contributor:
Science Photo Library / Alamy Stock PhotoImage ID:
2ACDM17File size:
54.8 MB (2.2 MB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
4961 x 3864 px | 42 x 32.7 cm | 16.5 x 12.9 inches | 300dpiDate taken:
25 August 1999Photographer:
POWER AND SYRED/SCIENCE PHOTO LIBRARYMore information:
Marram grass leaf. Coloured scanning electron micrograph (SEM) of a transverse section through a leaf of marram grass, Ammophila arenaria. The leaf surface (epidermis) is covered in a dense wax, which protects the plant against drying conditions. The upper surface of the leaf is highly grooved and covered with single-celled hairs. These hairs are to discourage foraging animals and also reduce air currents and so help prevent evaporation. At the base of each fold is a round vascular bundle containing xylem vessels (large oval spaces) and smaller phloem cells used to transport water and food through the leaf. Magnification: x46 at 5x7cm size. Magnification: x110 at 5x7ins size.