Ramalina capitata (Ach.) Nyl.
Thallus in a small bush of 1-3 cm, isolated but most often in cushion, generally erect, formed of branches in thongs of 1-3 mm in width, flattened especially towards the base or rounded especially at the top, coming from a single crampon, surface striated longitudinally, pale greenish in wet weather, greyish in dry weather, with terminal or subterminal soralia, ball-shaped, concolorous. Very rare, terminal or subterminal apothecia. No colored chemical reactions. Mountain species, nitrophilous, coming especially on the top of siliceous rocks used as perch for birds.
N.B. Similar to some forms of Ramalina siliquosa but this last species is maritime and does not have terminal capitate soralia.