Aurantiporus fissilis
Description
Aurantiporus fissilis is an inedible species of poroid fungus in the family Polyporaceae. It is a plant pathogen. This is a white bracket clump that has been growing parasitically on various deciduous broadleaved species. Usually located on sites of wounding/damage – principally, tear-outs and pruning wounds.
Although known primarily as a central and northern European species, it was recorded from Taiwan in 2016.
This species could be confused with Spongipellis spumeus.
Tyromyces fissilis is a synonym.
Common names: Greasy bracket.
Mushroom Identification
Fruiting Body
Bracket shaped, upper surface rough, felty, whitish, pores large, 2 to 3 per mm, whitish, sometimes exuding clear or red droplets, to about 20 cm wide, and 10 cm thick.
Flesh
Firm, moist, white.
Odor and Taste
The odor is fungal, pleasant. The taste is mushroomy, bitter.
Season
Late summer to autumn.
Habitat
On dead wood from deciduous trees, favoring beech.
Spores
Broadly ellipsoidal, smooth (4-5.5) x (2.5-3.5) µm2. Basidia club-shaped, 4 spored. Generative hyphae with clamps.
Spore Print
White.
Microscopic Features
Spore ellipsoidal.
Similar Species
Trametes suaveolens (smells of aniseed).
Photo sources:
Photo 1 - Author: phillbobaggins (CC BY-SA 4.0)
Photo 2 - Author: Jerzy Opioła (CC BY-SA 4.0)
Photo 3 - Author: gailhampshire from Cradley, Malvern, U.K (CC BY-SA 2.0)
Color:White