Appearance
The fan- or shelf-shaped caps grow in overlapping clumps from the bases of oak trees, each capable of growing to 25.5 cm diameter. They are various shades of white to pale grey, cream, beige or yellow.The pore surface is white, as is the spore print. The round spores are 7–9 by 6–8 μm and have marked amyloid ridges. The tough white flesh can be up to 3 cm thick and has a mild taste, which can be bitter in older specimens.
The outer edges that cut easily with a knife are quite tender.
Naming
Elias Magnus Fries described the species as ''Polyporus berkeleyi'' in 1851. It was moved to the genus ''Bondarzewia'' in 1941.
Distribution
In China it has been recorded from Guangdong and Hunan provinces. The fruit bodies appear over July to October in the United States.
Habitat
A survey of host trees in North Carolina found that it almost always grew on oaks, being recorded from the white oak, scarlet oak, southern red oak, chestnut oak and eastern black oak, as well as bird cherry.References:
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