Cudbear Small 320×197 Medium 640×394 Large 1024×631 Download Tiff Original 2400×1478 | (1.5 MB) Description A purple or violet powder, used in dyeing violet, purple, crimson, prepared for various species of lichens which grow on the rocks in northern europe. Keywords mold Galleries Mosses and Lichens Source: William & Robert Chambers Encyclopaedia - A Dictionary of Universal Knowledge for the People (Philadelphia, PA: J. B. Lippincott & Co., 1881)