A relaxed stroll to identify some of the approximately 140 species of trees in Central Park, as described in the book "New York City Trees" by Ned Barnard. (This is a compact, well-illustrated guidebook which you can buy from Amazon.com for $12.35. If you order it right away you can get it in time for the walk.) Both tree experts (whose assistance will be much appreciated) and complete beginners are cordially welcome. This walk will necessarily proceed at a snail's pace, with many stops to look at trees. Trans. meet 10 a.m. inside the Dana Discovery Center (bathrooms!), a short distance east inside the entrance to the park at 110 St. and Lenox Ave. Email or call me if it looks like it might rain, otherwise just show up. Walk should end around 1 p.m. at my favorite Mexican restaurant (inexpensive!) near the park. Bob susser, [masked], [masked].