The rose family (Rosaceae) is a large and diverse plant group that contains much more than just roses. On Thursday, July 14, beginning at 5:30 pm, take a walk through the Bradley Rosaceous Collection with Arnoldia editor Nancy Rose and learn about some familiar and not-so-familiar members of the rose family. In case of inclement weather, contact 617.384.5209. Meet at the Map Table at Dawson Pond, 125 Arborway in Boston. Free, but registration requested at 617-384-5251, or email adulted@arnarb.harvard.edu.