Recovery Plan for the Rock Gnome Lichen ('Gymnoderna lineare') (Evans) Yoshimura and Sharp.

摘要

Gymnoderma lineare is federally listed as an endangered species. It is currently known from 35 locations (26 in North Carolina, 7 in Tennessee, 1 in South Carolina, and 1 in Georgia). This rare lichen grows only in areas of high humidity, such as high-elevation vertical rock faces that are frequently bathed in fog or in deep gorges at lower elevations. It is threatened by collection, logging, and habitat disturbance due to heavy use by hikers and climbers. It is also indirectly threatened by exotic pests and possibly air pollution.