![]() The Arboretum distributed over a kilogram of the tiny, lentil-sized seeds to arboreta and botanic gardens across the world, playing a crucial role in the tree’s international reinstatement and conservation.Ĭlick here to read a transcript of the audio segment below. The dawn redwoods planted at the Arboretum-including the one before you-are the first of their kind to grow in North America in over two million years. Elmer Merrill, director of the Arboretum from 1935 to 1946, funded a collecting trip in China to bring back seed. This deciduous, monoecious, coniferous tree grows to 100 feet tall. Researchers and scientists rushed to see the trees for themselves. The discovery of a “living fossil” made international headlines. It was alive and well and living in western Hubei Province. The compact, pyramidal habit makes an excellent large accent in the landscape. Needles become russet-orange in fall before dropping. In 1946, Hu and another professor announced the discovery that Metasequoia had not gone extinct after all. This beautiful deciduous conifer features dense growth and golden foliage that becomes tinged with orange as the season progresses. One of these colleagues was Hsen Hsu Hu, a prominent professor who was the first person from China to receive a doctorate in botany from Harvard University. Over the next several years, Wang worked with colleagues to coordinate collecting expeditions and taxonomic Taxonomy: A branch of science concerned with systems of classifying living and non-living things. At the foot of the oldest tree were a collection of votives-community members had been leaving offerings under the branches for decades. Then, a forester, Zhan Wang took samples from a mysterious stand of trees deep in a valley in the Hubei Province of central China. This is a large, fast-growing, deciduous, pyramidal evergreen tree that grows up to 100 tall with attractive, feathery foliage that is easy to transplant. Rocks containing the imprints of the dawn redwood’s characteristic needle pattern had been found in North America, Europe, and East Asia. The genomic resources of redwood trees would provide clues to their evolutionary relationship. In the early 1940s, the genus Metasequoia was known only from the fossil record Fossil record: The totality of all preserved remains of once-living things throughout geological history. Redwood trees (Sequoioideae), including Metasequoia glyptostroboides (dawn redwood), Sequoiadendron giganteum (giant sequoia), and Sequoia sempervirens (coast redwood), are threatened and widely recognized iconic tree species on the earth. The tree symbolizes the Arboretum’s missions of international conservation, education, and research. In 1998, the Arboretum’s magazine, Arnoldia, named the dawn redwood the “tree of the century.” You may recognize the tree from the Arboretum’s logo, where it has been featured since 1995.
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