Blue cheese polypore

Description:

The fruitbodies are typically 1 to 5 cm across and up to 1 cm thick, and the upper surface is covered in fine hairs and radial wrinkles that create a slightly wavy margin. The upper surface is white initially but develops a blue-grey tinge as it matures, and it also blues fairly soon after being handled. The tubes are 2-8 mm deep, white at first and later becoming gray-blue. Pores are 2-4 per mm, circular or angular to elongated, white, becoming grayish or gray-blue with age.

Habitat:

In Europe Oligoporus caesius is saprobic mainly on the well rotted dead wood of coniferous trees, and most often seen on decaying felled spruce trunks. In contrast, in North America, where this rubbery shelf or bracket fungus is commonly referred to as the Blue cheese polypore, this species is often recorded as occurring on standing or fallen trunks or on the snapped-off decaying branches of broadleaf trees. Oligoporus caesius is a fungus of damp, shaded places, and so it is much more often found in mature mixed woodland, conifer forests and plantations than on dead timber in more open parkland.

Notes:

Spotted in Kroondomein Het Loo in rural area of Apeldoorn, Holland.(sources:see reference)