Durfee Conservatory: "About 120 species of trees are represented on the map, according to Ahern. He singles out as particularly noteworthy the pin oak near Munson Hall, one of the largest in the state; the black tupelo tree near the Campus Pond; the Japanese elm by South College, the oldest in the country; the beeches in front of Draper Hall; and the 'shadbush' courtyard between the Conte polymer center and the Lederle graduate research building. Ahern expects to label the trees along each route sometime next spring, and he’s hopeful the campus can also develop a database of all its trees in the near future."