Micarea lignaria (Ach.) Hedl.

Micarea lignaria (Ach.) Hedl.

Bih. K. svenska VetenskAkad. Handl., Afd. 3 18 (no. 3): 82 (1892).

Basionym: Lecidea lignaria Ach., K. Vetensk.-Acad. Nya Handl. 29: 236 (1808).

Note: There is a variety endoleuca. It differs from var. lignaria by the thallus reactions P-, C+ and KC+ orange (López de Silanes & Paz Bermúdez 2002: 79).