Nova Hedwigia 9: 30 (1965). Basionym: Physcia pulverulenta var. detersa Nyl., Syn. meth. lich. (Parisiis) 1(2): 420 (1860).
Basionym: Physcia pulverulenta var. detersa Nyl., Syn. meth. lich. (Parisiis) 1(2): 420 (1860).