lichens `white mosses` reindeer moss-reindeer moss, dormant, tsetraria icelandic moss grows in the tundra and taiga

algae area capable chordes climatic dormant fodder food forest forms fungus green grows icelandic landscape latitudes lichen lichenreindeer lichens microscopic moss mosses mossreindeer nlichens northern photosynthesis reindeer stellar storage subarctic symbiosis taiga thallus tsetraria tundra white xarctic xautonomous xecosystem xtundra zone