Xanthoria fallax. This really is a Xanthoria after thought. Before Xanthoria ulophyllodes was separated from X. candelaria, some called it Xanthoria fallax. This really is what is called Xanthoria fallax today, and as can be seen, it does not closely resemble X. ulophyllodes. This photo was taken during a Lichen Society visit to Central Spain at La Baranca in the Sierra de Guadarrama on an oak tree, and was confirmed by a local lichenologist. It has never been recorded in the British Isles.