There's a site out there that takes you through
a set of criteria - bark type, leaf type, tree shape
etc., with pictures of types to choose from. Based
on your choices it will provide the latin and common
name(s) of a tree or trees that meet your selected
criteria, as well as info about the characteristics of
the tree(s) and photos of that type of tree or trees.
do a google search on "tree identification" and you
should find the site.