Postia caesia - Conifer Blueing Bracket

Postia caesia - Conifer Blueing Bracket

Taxonomy

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Polyporales

Family: Fomitopsidaceae

Pale at first, this unusual rather than pretty annual bracket fungus, which can appear singly or in rows or tiers, turns a distinctive blue colour as it ages.

Pine wood is the usual host of this wood-rotting fungus, although very occasionaly you may also find these hairy blue brackets on dead and decaying hardwoods such as beech or oak logs.

Identification Guide

Hairy cap of Postia caesia

Cap

The fruitbodies are typically 1 to 5cm across and up to 1cm thick, and the upper surface is covered in fine hairs and radial wrinkles that create a slightly wavy margin.

Tubes and Pores

The pores are white and spaced 4 to 6 per mm.

Spore print

Pale blue.

Odour/taste

Mild odour; very little taste; inedible.

Habitat

Restricted to coniferous trees.

Season

Throughout the year, but releasing spores in late autumn.

Occurrence

fairly frequent.

Similar species

Because of its colour, Postia caesia is unlikely to be confused with any other common bracket fungus.