DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Spirogyra algae. Polarised light micrograph of a close-up of Spirogyra sp. algae. This filamentous green algae is named for the spiral arrangement of its chloroplasts (green). It's cylindrical cells connect end to end in long green filaments. Magnification: x360 when printed 10 centimetres wide.
Model release not required. Property release not required.