DCHP-1 Online
rock-tripe < Cdn F tripe de roche 
n. an edible lichen of the genus, Umbilicaria (or, less often, the genus Gyrophora), having circular, leathery, grayto-brownish thalli found attached to certain rocks by a threadlike holdfast.
See also: rock moss rock weed tripe de roche
- 1853 On reaching the rock, they saw what Norman had meant by the words tripe de roche (rock-tripe). It was a black, hard crumply substance that nearly covered the surface of the rock, and was evidently of a vegetable nature.
- 1944 Often they speeded past high banks, where the rock-tripe and lichens had been scraped off by voyageurs, leaving their names and dates etched in white against the dark of the remaining vegetation.
- 1952 Sometimes she scrabbled through the drifts on hilltops and found a few wizened bearberries or a handfull of rock-tripe, a kind of moss.
- 1853 On reaching the rock, they saw what Norman had meant by the words tripe de roche (rock-tripe). It was a black, hard crumply substance that nearly covered the surface of the rock, and was evidently of a vegetable nature.