Iceland moss(redirected from Cetraria islandica)
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Iceland moss:see lichenlichen
, usually slow-growing organism of simple structure, composed of fungi (see Fungi) and photosynthetic green algae or cyanobacteria living together in a symbiotic relationship and resulting in a structure that resembles neither constituent.
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(Cetraria islandica), a lichen (not a moss) of the family Parmeliaceae. The thallus consists of elongated, branched brown lobes gathered in a bush with a height of up to 12 cm. Iceland moss is found in forest and tundra zones, growing mainly in pine forests, on heather moors and plains, and in the mountains. It contains the carbohydrates lichenin and isolichen-in. In the north it is an important food for reindeer.