Hypophyllous; spots scarcely noticeable from above. Aecidia light orange color, clustered in angular groups 1-7 mm in diam, rather short, mostly deeply lacerate-fringed, fragile. Spores angular-globose or subelliptical 15-17 x 15-22 micr. Differs from Ae delphinii, Barth in color and form of the aecidia and size and shape of the spores.