2010.03.07 Lower Austria, district Schwechat (most likely on bark of Populus, bark lying on the ground, 155 m).Colour of this specimen suggests that it grew on a northerly exposed side (yellow-greenish rather than orange).Sharing this piece of bark with another (unidentified) lichen species.Very common.German name: Gewhnliche GelbflechteID: Wirth/Dll, Farbatlas Flechten und Moose (2000)
Flavoparmelia caperata, a green shield lichen, Maine, 28th November 2008, mixed coastal forest. The identification is tentative and I would welcome confirmation or correction.