Bracket Fungus (Trametes versicolor)
One of the key players in the rotting process is fungi and this is one of the most common. Bracket fungi are similar in many ways to the normal 'umbrella' toadstools, it is just that the fruiting head has a half moon shape.
The fungus is, of course, present all year round. It lives within the log feeding on the decaying matter and hastening the recycling process. If you pick away at a rotting stump you might well find the white thin strands of the fungus itself.
In autumn (usually, not always) the fruiting head appears which has a protective covering on the top and it is from underneath the spores are released.
Trametes versicolor occurs on virtually all forms of decaying wood. Some species, such as the Birch Polypore (I wrote about that on the 1st October) are more specialised. Trametes versicolor will vary in colour depending on the fruiting body's age, it dries out after serving its purpose and becomes harder and darker. When the fruiting body is fresh, however, it has this lovely 'concentric ringed appearance' with iridescent shades of grey, green, brown, violet and even black.