Oak Bracket

Inonotus dryadeus

''Inonotus dryadeus'', commonly known as oak bracket, warted oak polypore, weeping polypore or weeping conk, is an inedible species of fungus belonging to the genus ''Inonotus'', which consists of bracket fungi with fibrous flesh. Most often found growing at the base of oak trees, it causes white rot and decay of the trunks. It secretes an amber liquid which weeps from tubes in its upper surface.
Oak Bracket - Pseudoinonotus dryadeus A close up of the same fungus.
Kasteelpark Arenberg, Oct 2014.  Belgium,Fall,Geotagged,Inonotus dryadeus,Oak Bracket

Appearance

The thick fruiting body of ''Inonotus dryadeus'' varies in size from 5 cm to 30 cm in width, although specimens up to 75 cm have been found. Its velvety upper surface is cream to rusty brown with a yellower margin, and is pitted with tubes up to 3 cm deep which ooze an orange-brown liquid when the fruit body is young, hence the name "weeping conk".

On the buff underside there are 4–6 fine pores per millimetre. These are initially greyish-white but mature to yellow or ochre.

The flesh is soft and fibrous, yellow-brown in colour and has an unpleasant odour.
Oak Bracket (Pseudoinonotus dryadeus) At the base of a rotting Willow Oak stump in a backyard habitat in NW Georgia (Gordon County), US. Fall,Geotagged,Inonotus dryadeus,United States

Naming

''I. cuticularis'' grows on beech, sycamore and elm.
Oak Bracket - Pseudoinonotus dryadeus With my 36 size foot next for an idea of size.
Kasteelpark Arenberg, Oct 2014. 
https://waarnemingen.be/species/673601/photos/? Belgium,Fall,Geotagged,Inonotus dryadeus,Oak Bracket

Distribution

''Inonotus dryadeus'' is a parasitic saprobic fungus, with spores entering wounds on broadleaf trees . It grows close to the ground on the trunk, thickly attached, and either singly or in groups.

It has been observed in North America and temperate northern Europe, where it is described as widespread but locally common. Fruiting occurs in summer and autumn, but fruit bodies may overwinter and persist for several years, eventually turning black and cracked. Presence of a fruit body may indicate that the mycelium has penetrated and weakened the root crown of the tree.
Oak Bracket (Inonotus dryadeus) Growing at the base of a chestnut oak in a dense mixed hardwood/coniferous forest.
https://www.jungledragon.com/image/68466/oak_bracket_inonotus_dryadeus.html
https://www.jungledragon.com/image/68465/oak_bracket_inonotus_dryadeus.html Fall,Geotagged,Inonotus dryadeus,Oak Bracket,United States

Habitat

''Inonotus dryadeus'' is a parasitic saprobic fungus, with spores entering wounds on broadleaf trees . It grows close to the ground on the trunk, thickly attached, and either singly or in groups.

It has been observed in North America and temperate northern Europe, where it is described as widespread but locally common. Fruiting occurs in summer and autumn, but fruit bodies may overwinter and persist for several years, eventually turning black and cracked. Presence of a fruit body may indicate that the mycelium has penetrated and weakened the root crown of the tree.

References:

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Taxonomy
KingdomFungi
DivisionBasidiomycota
ClassAgaricomycetes
OrderHymenochaetales
FamilyHymenochaetaceae
GenusPseudoinonotus
SpeciesI. dryadeus