Bark: A Field Guide to Trees of the Northeast

Leaves aren't the only way to identify a tree. Learn how to do it by looking at bark, and you won't be stumped come winter when the leaves are gone. Author Michael Wojtech discusses tree identification, the structure and ecology of tree bark, how it evolved, and phases of trees' life cycles. The talk is offered in conjunction with the exhibit "New England Forests." -- Milva DiDomizio, Globe Staff