NA 58818 Prunus incisa seed plant Mount Amagi- Yugashima – photograph , 1986

The focus of the subseries is on the articles, correspondence, photographs, maps, charts, and other papers from Jefferson's expeditions to Japan, Korea, and Taiwan. These cover Jefferson's expedition to Japan from 1981-1983, where he collected bud wood from cherry trees and started the dogwood seed exchange program. His 1986 expedition took him to Japan, Korea, and Taiwan to study Prunus (cherry trees). The photographs show Jefferson in the field, various cherry trees, and the dogwood seed exchange program with Japanese children collecting cherry seeds. The information from the Americans collecting dogwood seeds is in the subseries III.A. Dogwood Seed Exchange. The maps and charts cover the locations of the collected cherry seeds and budwood from Japan that was planted on the South Farm Plant Industry Station in Beltsville, Maryland. The other papers focus on his travel proposals, proposal reviews, his final report, accession lists, distribution lists, location lists, and photographs of his expedition. Also included are color-coded envelopes which show how Jefferson organized some of his expedition papers. Each envelope has a color sticker and title that relates to various papers, with matching color stickers, throughout the collection. The subseries is arranged chronologically.