Found 1 items, similar to Lecanora tartarea.
English → English (gcide) Definition: Lecanora tartarea 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 tartarea, etc.), as a blue amorphous mass which consists of a compound of the alkaline carbonates with certain coloring matters related to orcin and orcein. [1913 Webster] Note: Litmus is used as a dye, and being turned red by acids and restored to its blue color by alkalies, is a common indicator or test for acidity and alkalinity. [1913 Webster] Litmus paper (Chem.), unsized paper saturated with blue or red litmus, -- used in testing for acids or alkalies. [1913 Webster] Cudbear \Cud"bear`\ (k?d"b?r`), n. [Also cudbeard, corrupted fr. the name of Dr. Cuthbert Gordon, a Scotchman, who first brought it into notice.] 1. A powder of a violet red color, difficult to moisten with water, used for making violet or purple dye. It is prepared from certain species of lichen, especially Lecanora tartarea. --Ure. [1913 Webster] 2. (Bot.) A lichen (Lecanora tartarea), from which the powder is obtained. [1913 Webster] Cudbear \Cud"bear`\ (k?d"b?r`), n. [Also cudbeard, corrupted fr. the name of Dr. Cuthbert Gordon, a Scotchman, who first brought it into notice.] 1. A powder of a violet red color, difficult to moisten with water, used for making violet or purple dye. It is prepared from certain species of lichen, especially Lecanora tartarea. --Ure. [1913 Webster] 2. (Bot.) A lichen (Lecanora tartarea), from which the powder is obtained. [1913 Webster]