Description
Less than 1cm: Use magnifying glass.
Fruit-body annual, waxy, crust-like, covering up to several square centimetres, up to 1 mm thick, with whitish, fibrous margin. Pores circular to polygonal, reticular, whitish or cream to pale grey.
Spore-print colour white.
Occurrence
On the underside of decayed branches of deciduous trees in damp woods.
Saprophyte.