Dendrochronological Dating of Two Tulip Poplars on the West Lawn of Monticello

摘要: Abstract Two tulip poplars (Liriodendron tulipifera L.) growing at Monticello, the home of Thomas Jefferson, were recently removed because potential damage to house; however, their ages uncertain. Jefferson's writings express his interest in and suggest that he may have planted least one, but documents are not conclusive. After Jefferson Foundation purchased property A.D. 1923, expert opinions on these trees divided. This study investigated both (referred as northwest southwest). Even though southwest tree's bole was hollow decay present tree, usable cross-sections obtained. The cross-section from an upper branch, whereas lower extracted tree. Ring widths crossdated statistically verified using oak chronology Monticello. innermost rings tree dated 1852 an...