Ramalina

Lichens, mainly Ramalina duriaei, grow on dead tree branches sustained by the moisture from fogs.

Arabian Oryx Sanctuary, Oman 2008

The grey Lichen, _Ramalina scopulorum_ dyes a fine shade of yellow brown.

Vegetable Dyes Being a Book of Recipes and Other Information Useful to the Dyer Ethel M. Mairet

(or, according to modern botanists, _Ramalina scopulorum_), in which they look like an assemblage of ancient Druids, mysteriously stern and invincibly silent and shaggy as the bard of Gray, when

The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland Hugh Miller 1829