Top ten books about trees

Fiona Stafford is professor of English language and literature, University of Oxford. Her latest book is The Long, Long Life of Trees.

One of Stafford's ten top books about trees, as shared at the Guardian:
Howards End by EM Forster

I learned from reading this book at school that novels can work through recurrent phrases and enigmatic images. Here, on the very first page, is the wych elm. I had