About Amandinea punctata (Hoffm.) Coppins & Scheid.
Amandinea punctata, commonly known as tiny button lichen, is a crustose lichen that ranges in color from brown to gray. It grows on wood and rock across the globe. It grows on the surface of wood rather than inside it, making it epiphytic. It prefers acidic bark. In California, it is one of the most common crustose lichens found growing on trees. Sometimes its thallus is not present, and branches may become covered in its lecideine apothecia. Due to its tolerance for low humidity, it is one of the few epiphytic lichens that grow on trees in California deserts. In this region, it commonly grows on old, dry wood of junipers, and sometimes grows on fallen pinyon pines, oaks, or their dead branches. Unlike many other lichens, Amandinea punctata is tolerant of air pollutants and other toxins, including NO₂ and SO₂.
