Other crossword clues for answer "LICHEN"LICHENFungus/alga symbiosisOakmoss, e.g.Alga-fungus combinationAlga-fungus symbiosisBeard moss, for oneGrowth on trees and rocksRock fungusRock growthTree growthFungus-alga unionWoodsy growthSymbiotic growthRock plantTree-trunk cover, perhapsGrowth on rocksFungus + algaGrowth on rock wallsForest growthSource of litmusPlant life of Antarctica.Thallophyte.Iceland moss.Moss.Reindeer moss.Rock garden plant.Rock greenery.Mosslike plant.Rock crusterReindeer moss, e.g.What a rolling stone is unlikely to gatherGrowth on a treeOrganism that grows on rocksIt may grow on rocksMossy growthReindeer moss, for instanceAlgae-fungi compositeMosslike organismLitmus source