Click on any image to enlargeTwenty years later I revisited the tree, and here are the photos. You will notice that the branch has died but not that long ago, maybe up to 5 years.
I have seen similar things with yew trees, their roots especially can grow and fuse together. Then again the yew is one of the most amazing of trees in my world, they live for 1000`s of years. They rot out in the trunk and then send down aerial roots.
If anyone has any weird and wonderful tree photos send them to me and I may post them on this blog. Email firstname.lastname@example.org