Beih. Nova Hedwigia 38: 184 (1971). Basionym: Physcia palmarum Vain., in Hiern, Cat. Welwitsch Afric. Pl. 2(2): 410 (1901). Taxonomy: There is a variety undulata (Vain.) D. D. Awasthi.
Basionym: Physcia palmarum Vain., in Hiern, Cat. Welwitsch Afric. Pl. 2(2): 410 (1901).
Taxonomy: There is a variety undulata (Vain.) D. D. Awasthi.