Roccella tinctoria


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Noun1.Roccella tinctoria - a source of the dye archil and of litmusRoccella tinctoria - a source of the dye archil and of litmus
lichen - any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.
genus Roccella - chiefly fruticose maritime rock-inhabiting lichens