hanging-moss

from The Century Dictionary.

• noun A name for certain lichens of the genera Usnea and Cladonia, particularly the former, from their habit of hanging in long fringes from the limbs of trees, etc. See Usnea. The name is also sometimes given to the long moss or black moss of the southern United States, Tillandsia usneoides, which has a similar habit, but is a phænogamous plant. See Tillandsia.