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Noun
1. lichens
Wikipedia definition
2. LichenLichens are composite organisms consisting of a symbiotic relationship between a fungus (the mycobiont) and a photosynthetic partner (the photobiont or phycobiont), usually either a green alga or cyanobacterium. The morphology, physiology and biochemistry of lichens are very different from those of the isolated fungus and alga in culture. Lichens occur in some of the most extreme environments on Earth—arctic tundra, hot deserts, rocky coasts, and toxic slag heaps.
Read “Lichen” on English Wikipedia
Read “地衣類” on Japanese Wikipedia
Read “Lichen” on DBpedia

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