Mém. Soc. Imp. Sci. Nat. Cherbourg 3: 175 (1855). Note: There is a variety from the Comores: Physcia obsessa var. hypochrysa Kremp., Linnaea 41: 141 (1877)
Note: There is a variety from the Comores: Physcia obsessa var. hypochrysa Kremp., Linnaea 41: 141 (1877)