Silva Silva – The newsmagazine of the Arnold Arboretum Silva Past Issues » Current Issue—Spring/Summer 2020 Entire Issue Silva Spring/Summer 2020 Features Message from the Director [pdf] Preparing for a Drier Future: Major donor-funded initiative to safeguard collections from prolonged drought [pdf] A NACPEC Expedition in North America: Partnership established to explore biodiversity in China expands its scope [pdf] The Tempo of Trees in a Warming World: Understanding changes seen today and predicting the future of forests [pdf] Explore the Arboretum with Expeditions: New mobile tour application coming soon [pdf] An Inventory Intrigue: Curatorial staff complete second five-year census of the living collections [pdf] In our Collection: Amelanchier [pdf] Classes and Events Note all public programs have been canceled through May. Fall/Winter Visitor Guide Note our landscape remains open to visitors; please follow safety guidelines. Get Silva at home! Members receive the print edition of Silva exclusively, along with many other benefits, as our thanks for supporting the work of the Arnold Arboretum. Become a member.