Lecanora polytropa has a scanty thallus, which sometimes resembles tiny pale yellowish areoles.
The tiny, flat apothecia typically measure 0.3–0.9 mm in diameter and may be scattered or clustered together.
They have a waxy texture and are yellow to pale orange, lacking pruina.
The margins of the apothecia are smooth, not prominent, and tend to be lighter in colour than the central disc.
Ascospores are ellipsoid and measure 8–15 by 5–7 μm.
Lecanora polytropa has a scanty thallus, which sometimes resembles tiny pale yellowish areoles. The tiny, flat apothecia typically measure 0.3–0.9 mm in diameter and may be scattered or clustered together. They have a waxy texture and are yellow to pale orange, lacking pruina. The margins of the apothecia are smooth, not prominent, and tend to be lighter in colour than the central disc. Ascospores are ellipsoid and measure 8–15 by 5–7 μm.
Lecanora polytropa