Section through stem of Oak tree

Section through stem of Oak tree

B725/0270 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 52.5MB

Downloadable file size: 9.6MB

Price image Pricing

Please login to use the price calculator


Credit: ALFRED PASIEKA/SCIENCE PHOTO LIBRARY

Caption: Oak stem. Polarised light micrograph of a cross- section through the stem of an oak tree, Quercus sp. At upper frame (dark blue) is cork tissue of the bark, with bands of phloem cells (pink). At centre are concentric layers of tracheid (xylem) cells forming the wood of the oak stem. Metaxylem vessels appear as large ovals (purple). The concentric layers in this wood correspond to annual growth rings (a count of which would indicate the age of this stem). At lower left is the pith. Quercus robur, the English oak, may live to an age of 500 years or more, and would develop the same number of growth rings in the main tree trunk. Magnification: x18 at 6x7cm size.

Release details: Model release not required. Property release not required.

Keywords: bark, botany, growth ring, nature, oak, oak tree, plant, plants, quercus sp., tracheid, type, wood

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.