Roccella tinctoria

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• Roccella tinctoria — Roccella tinctoria …   Wikipédia en Français

• Roccella tinctoria — Roccella tinctoria …   Wikipédia en Français

• Roccella tinctoria — Roccellic Roc*cel lic, a. [F. roccellique, fr. roccelle archil, It. & NL. roccella, fr. It. rocca a rock, because archil grows on rock.] (Chem.) Pertaining to, or designating, a dibasic acid of the oxalic series found in archil ({Roccella… …   The Collaborative International Dictionary of English

• Roccella tinctoria — Litmus Lit mus, n. [D. lakmoes; lak lacker + moes a thick preparation of fruit, pap, prob. akin to E. meat: cf. G. lackmus. See {Lac} a resinous substance.] (Chem.) A dyestuff extracted from certain lichens ({Roccella tinctoria}, {Lecanora… …   The Collaborative International Dictionary of English

• Roccella tinctoria — Archil Ar chil (?; 277), n. [OF. orchel, orcheil, It. orcella, oricello, or OSp. orchillo. Cf. {Orchil}.] 1. A violet dye obtained from several species of lichen ({Roccella tinctoria}, etc.), which grow on maritime rocks in the Canary and Cape… …   The Collaborative International Dictionary of English

• Roccella tinctoria — ID 72121 Symbol Key ROTI Common Name roccella lichen Family Roccellaceae Category Lichen Division Ascomycota US Nativity Native to U.S. US/NA Plant Yes State Distribution N/A Growth Habit Lichenous …   USDA Plant Characteristics

• Roccella tinctoria — noun a source of the dye archil and of litmus • Syn: ↑roccella • Hypernyms: ↑lichen • Member Holonyms: ↑genus Roccella …   Useful english dictionary

• Roccella tinctoria DC. — Symbol ROTI Common Name roccella lichen Botanical Family Roccellaceae …   Scientific plant list

• Roccella canariensis — Roccella tinctoria …   Wikipédia en Français

• roccella — noun a source of the dye archil and of litmus • Syn: ↑Roccella tinctoria • Hypernyms: ↑lichen • Member Holonyms: ↑genus Roccella * * * Roccella /rok selˈə/ noun A genus of lichens, yielding archil and litmus ORIGIN: It …   Useful english dictionary