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

Crossword clues for spore clusters on ferns.

Answer	Clue
SORI	Fern spore clusters
SORI	Spore clusters on ferns.
SORI	Fern spore-class clusters
SORUS	Spore cluster of a fern