Bearded LichenThe Bearded Lichen, Usnea barbata, (L. ) Fr.
Habitat.-On trees, both living, and dead.
Vegetative organs (thallus).-Shrubby (fruticulose) often pendulous, greenish, covered with numerous radiating fibrils of the same colour; the interior tissue (medulla) consisting of a central cord surrounded by a cottony layer. The branches are circular (terete) in cross-section and are rough with papillae.
Fruiting organ (apothecia)-Shield-like (scutellaeform) with a pale disk.
Name.-The specific name barbata is the Latin for "bearded."