roccella

English Thesaurus

1. a source of the dye archil and of litmus (noun.plant)

hypernym	:	lichen,
definition	:	any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc. (noun.plant)

member meronym	:	genus roccella,
definition	:	chiefly fruticose maritime rock-inhabiting lichens (noun.plant)