Family: Parmeliaceae.

Under the name of Lichen quercinus viridis, Muscus arboreus, Muscus Acaciae, French Mousse de chene or Mousse odorante, German Eichenmoos, the lichen Evernia prunastri, L. (Fam. Parmeliaceae) is used in perfumery.

1) J. Zellner, Monatsh. f. Chem. 29 (1908), 53; Chem. Zentralbl. 1908, I. 1471. - Amanitol is also contained in the false Feuerschwamm, Polyporus igniarius, Fr., ). Zellner, Monatsh. f. Chem. 29 (1908), 1187.

2) Chem. Zentralbl. 1903, I. 1137.

3) W. Heinisch and J. Zellner, Monatsh. f. Chem. 26 (1904), 537; Chem. Zentralbl. 1904, II. 909.

4) Monatsh. f. Chem. 26 (1905). 742; Chem. Zentralbl. 1905, II. 409.

The odoriferous constituents of this plant are used either in the form of an alcoholic tincture or as Essence concrete1) obtained by the extraction of the lichen with volatile solvents. It contains a volatile oil which can be obtained by treating the extract with acetone, which does not dissolve the resin and chlorophyll. Upon evaporation of the acetone there remains an oil which, after it has been distilled in vacuum, possesses a very pleasant odor. According to Gattefosse2) it consists almost entirely of a phenol(?), isomeric with carvacrol, which he has named lichenol. It is completely soluble in a 3 p. c. soda solution.