Damage caused by other fungi

(Antrodia vaillanttii (DC.: Fr.) Ryv.)), white, often with iceflower-like branching. Strong strands are elastic even when dry, often grow apart in circles and remain white even when old.

White, old fruiting bodies yellowish, pores clearly visible to the naked eye, often surrounded by mycelium.

Brown rot with broken cubes. Usually only softwood is affected.

(Coniophora puteana (Schum.: Fr.) P. Karst.)). Initially white, later grey-brown to black-brown. Thin strands spread out like roots; tightly attached, altogether more sparse than in the dry rot and white pore sponge.

Thin, crusty skin, wart-like elevations up to 5 mm in diameter.

Brown rot with small to large cube breakage.

(Gloeophyllum Spp.)), No surface mycelium. Aerial mycelium possible in columns, initially white, later yellow to red-brown.

Semicircular or elongated. Often emerging from cracks or crevices. Color yellow to dark brown.

Wood initially discoloured yellowish to brown, later brown-red. Annual ring-shaped decay with small cube breakage, sweetish tar-like smell.

(Donkioporia expansa (Desm.) Kotl. & Pouz.), The spread house porling forms white to ochre colored mycelium mats in cracks and cavities, which are several centimeters thick and covered with yellow drops. Old mycelium grey-brown with black spots.

The fungus can form large fruiting bodies. They consist of a several cm thick, ochre to grey-brown coloured layer of tubes (sometimes in several layers). When fresh, the fruiting body is tough and elastic and becomes corkily hard with age.

The wood shows an intensive white rot (fibrous white decay). Wet hardwood and softwood is attacked.

(Chaetomium globosum Kunze), infests strongly soaked wood; wood moisture content over 80 %. Young mycelium white-grey, later dark brown to black.

Distinguishing feature: Very soft surface, which sometimes feels cheesy. In the advanced stage very small cube breaks and cross-sections clearly mark early and late wood areas or short fibrous, unnatural fractures.

Soft woods turns brownish to black. Very fine cube break. Microscopically visible cylindrical cavities are formed in the cell walls. Both softwood and hardwood is attacked (cube fracture enlarged).