I don't think it's a beech,
From the look of the tip growth and the staggering growth shown on the photo it looks like a member of the apple family (be tempted to say most likely a pear from the bit of bark visible at the tree base). I could be very wrong here though.
The glossy leaves look a different shape from most pears etc though and almost look more aspen like in shape if not in colour.
When was this photo taken and where?
Does the tree have thorns?
Is it evergreen?
From decay comes growth, fungal or otherwise. All stages of death are filled with life and life to be. Creation is made up of ugly beauty that is gorgeous to those who can feel as well as they can see.