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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Fungus + alga:

LICHEN: Alga-fungus combination
LICHEN: Alga-fungus symbiosis
LICHEN: Fungus-alga union
LICHENS: Fungus-alga unions
LICHEN: Fungus + alga