rock tripe

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rock tripe

n
(Plants) Canadian any of various edible lichens, esp of the genus Umbilicaria, that grow on rocks and are used in the North as a survival food
References in classic literature ?
The ear may be regarded, fancifully, as a lichen, umbilicaria, on the side of the head, with its lobe or drop.
Oropogon (Esslinger, 1989), Psiloparmelia (Elix & Nash, 1992), Stereocaulon (Lamb, 1977; Boekhout, 1982), Xanthoparmelia (Nash, Gries & Elix, 1995), and Umbilicaria (Sipman & Topham, 1992) and unpublished information on the genus Hypotrachyna in the Neotropics.
Similar examples are found in Psiloparmelia, Umbilicaria, and Xanthoparmelia.
Usnea sphacelata, Pseudephebe minuscula, Umbilicaria decussata), and soil algae have become established (Seppelt 1984; Smith 1990).
Screening the antioxidant and antimicrobial properties of the lichens Parmelia saxatilis, Platismatia glauca, Ramalina pollinaria, and Umbilicaria nylanderiana.
Keywords: Antimicrobial activity; Antioxidant activity; Parmelia saxatilis; Platismatia glauca; Ramalina pollinaria; Ramalina polymorpha; Umbilicaria nylanderiana