Reticularia (genus)

Fruiting body an aethalium, solitary to gregarious (although usually somewhat separated), pulvinate to hemispherical, at first silvery white but becoming brown, 2–8 cm broad and up to 2 cm thick.

Hypothallus white, usually forming a conspicuous margin about the base, becoming inconspicuous when powdered by the spores.

Cortex more or less tough cartilaginous, brown, lustrous, smooth to rugose.

Pseudocapillitium arising as erect plates from the base, branching in a dendroid fashion with many expansions and ending in a mass of flattened, flexuous threads almost free from the cortex.

Spores rust-brown in mass, pale brownish yellow or reddish brown by transmitted light, distinctly reticulate over about two-thirds of the surface, 8–9 µm in diameter.

Plasmodium creamy white.