Colonies developing on rounded yellowish or purple spots that can be black-centred. Spermogonia, aecia and uredinia unknown. Telia epiphyllous and hypophyllous, minute, often strongly clustered and sometimes forming dendritic patterns, compact, domed to hemispherical, shining black. Teliospores 30-56 x 12-20 µm, ellipsoidal, clavate or fusiform, the apex often acute, golden to mid brown, 1-septate, hardly constricted, the wall smooth, to 12 µm thick and paler at the apex. Pedicelsabout half the length of the spore, ± hyaline.