Birch stem, light micrograph Birch stem. Polarised light micrograph of a section through the stem of a birch Betula sp. plant. Magnification x100 when printed 10 centimetres wide. Stock Photo - Afloimages
Birch stem. Polarised light micrograph of a section through the stem of a birch (Betula sp.) plant. Magnification: x100 when printed 10 centimetres wide.