EDWARD KINSMAN / SCIENCE PHOTO LIBRARY EDWARD KINSMAN / SCIENCE PHOTO LIBRARY
SEM of Reindeer Lichen (Cladonia rangiferina). A lichen is a symbiosis between a fungus and an alga. The fungus provides the structural support for the lichen partnership, while the alga provides food by photosynthesis. Cladonia lichen are classified as fruticose due to their tall erect structures. Like all lichens, the ones in this photograph grow very slowly: only a few millimeters in a year. The field of view is .5mm and the magnification was 60x.
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