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| foliose lichens chiefly of northern latitudes ❲Cetraria❳ | ||||
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| lichen with branched flattened partly erect thallus that grows in mountainous and Arctic regions; used as a medicine or food for humans and livestock; lichen with branched flattened partly erect thallus that grows in mountainous and Arctic regions; used as a medicine or food for humans and livestock; a source of glycerol ❲Cetraria islandica❳ |