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Orchilla Weed :: Orchilla weed () The lichen from which archil is obtained. See Archil.

Lichenic :: Lichenic (a.) Of, pertaining to, or obtained from, lichens..

Usnea :: Usnea (n.) A genus of lichens, most of the species of which have long, gray, pendulous, and finely branched fronds. Usnea barbata is the common bearded lichen which grows on branches of trees in northern forests..

Spermogonium :: Spermogonium (n.) A conceptacle of certain lichens, which contains spermatia..

Angiocarpous :: Angiocarpous (a.) Having the seeds or spores covered, as in certain lichens..

Lirella :: Lirella (n.) A linear apothecium furrowed along the middle; the fruit of certain lichens.

Litmus :: Litmus (n.) A dyestuff extracted from certain lichens (Roccella tinctoria, Lecanora tartarea, etc.), as a blue amorphous mass which consists of a compound of the alkaline carbonates with certain coloring matters related to orcin and orcein..

Lichenous :: Lichenous (a.) Of, pertaining to, or resembling, lichens; abounding in lichens; covered with lichens..

Gonimia :: Gonimia (n. pl.) Bluish green granules which occur in certain lichens, as Collema, Peltigera, etc., and which replace the more usual gonidia..

Persis :: Persis (n.) A kind of coloring matter obtained from lichens.

Ascus :: Ascus (n.) A small membranous bladder or tube in which are inclosed the seedlike reproductive particles or sporules of lichens and certain fungi.

Cetrarin :: Cetrarin (n.) A white substance extracted from the lichen, Iceland moss (Cetraria Islandica). It consists of several ingredients, among which is cetraric acid, a white, crystalline, bitter substance..

Lichenology :: Lichenology (n.) The science which treats of lichens.

Parelle :: Parelle (n.) A kind of lichen (Lecanora parella) once used in dyeing and in the preparation of litmus.

Manna :: Manna (n.) A name given to lichens of the genus Lecanora, sometimes blown into heaps in the deserts of Arabia and Africa, and gathered and used as food..

Fibrillose :: Fibrillose (a.) Covered with hairlike appendages, as the under surface of some lichens; also, composed of little strings or fibers; as, fibrillose appendages..

Soredium :: Soredium (n.) A patch of granular bodies on the surface of the thallus of lichens.

Frond :: Frond (n.) The organ formed by the combination or union into one body of stem and leaf, and often bearing the fructification; as, the frond of a fern or of a lichen or seaweed; also, the peculiar leaf of a palm tree..

Amphigenous :: Amphigenous (a.) Increasing in size by growth on all sides, as the lichens..

Rhizine :: Rhizine (n.) A rootlike filament or hair growing from the stems of mosses or on lichens; a rhizoid.

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