Description
Fruit-body annual, hemispherical to cushion-shaped, Ø 3-6 cm, or with caps up to 2 cm thick and measuring 1-4 x 1 cm. Upper or outer surface hairy-felted, white to pale brown, staining brown when damaged. The imperfect form Ptychogaster fuliginoides occasionally with yellowish guttation drops, disintegrating into a powdery, brown ball. Spores (Chlamydo-spores) yellow-brown to dark brown. The perfect stage with 2-5 mm long tubes. Pores 2-4 per mm, angular, white to cream. Flesh concentrically zoned, fibrous, whitish to yellow-brown.
Spore-print colour white.
The photograph (309A.jpg) shows both the imperfect stage and the teleomorph.
Occurrence
The imperfect stage is not uncommon on branches, trunks and stumps of coniferous trees.
Saprophyte.