Metasequoia Glyptostroboides Dawn Redwood

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Metasequoia glyptostroboides Dawn Redwood Metasequoia glyptostroboides is an ancient yet also relatively new tree. Fossil records date back to the Mesozoic era and it was thought to be extinct until a small group were discovered by the Yangtze river, China in 1944. A very large tree with a neat, pyramid crown which is a great choice for urban, avenue or specimen planting. It grows most successfully in warmer climes and so is seen more commonly in southern areas of the UK. One of few deciduous conifers, the foliage is a flat needle, bright green, light and feathery turning fiery orangey-brown before falling. The bark is also attractive, reddish brown and fluted. Another identifying feature is that the buds, unlike other conifers, are on the underside of the twigs rather than above. Since its discovery, seed has been distributed for growth trials at collections across Europe and North America. Its ability to also be grown from cuttings means that it has also become widespread throughout Britain and is now a popular favourite. It is however, still classified as an endangered species by the IUCN. October 2013 Metasequoia glyptostroboides is available from Deepdale Trees as a standard or feathered plant. Metasequoia glyptostroboides 100-120cm girth standards Plant Profile Name: Metasequoia glyptostroboides Common Name: Dawn Redwood Family: Cupressaceae Height: up to 50m Demands: Very tolerant of air pollution and standing water, not suitable for dry soils. Foliage: Bright green, light feathery foliage, turning ochre shades in autumn before shedding it needles Bark: Orangey brown bark, scaly in young trees becoming elongated and fluted with maturity. Fruit: Small female, ovoid cones approx. 2-2.5cm. Male pollen cones on spikes in Spring (more common in areas with hot summers) Bright, feathery foliage, not dissimilar to Taxus baccata Deepdale Trees Ltd., Tithe Farm, Hatley Road, Potton, Sandy, Beds. SG19 2DX. Tel: 01767 26 26 36 www.deepdale-trees.co.uk Metasequoia glyptostroboides Dawn Redwood There are three other fossil species of Metasequoia, glyptostroboides is the only know living species. Attractive, fibrous bark of Metasequoia 80-90cm girth standards 30-40cm girth standards in airpot Feathered Metasequoia 9-10m height Deepdale Trees Ltd., Tithe Farm, Hatley Road, Potton, Sandy, Beds. SG19 2DX. Tel: 01767 26 26 36 www.deepdale-trees.co.uk.

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1 Paleobotanical Proxies for Early Eocene Climates and Ecosystems in Northern North 2 America from Mid to High Latitudes 3 4 Christopher K
https://doi.org/10.5194/cp-2020-32 Preprint. Discussion started: 24 March 2020 c Author(s) 2020. CC BY 4.0 License. 1 Paleobotanical proxies for early Eocene climates and ecosystems in northern North 2 America from mid to high latitudes 3 4 Christopher K. West1, David R. Greenwood2, Tammo Reichgelt3, Alexander J. Lowe4, Janelle M. 5 Vachon2, and James F. Basinger1. 6 1 Dept. of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, 7 Saskatchewan, S7N 5E2, Canada. 8 2 Dept. of Biology, Brandon University, 270-18th Street, Brandon, Manitoba R7A 6A9, Canada. 9 3 Department of Geosciences, University of Connecticut, Beach Hall, 354 Mansfield Rd #207, 10 Storrs, CT 06269, U.S.A. 11 4 Dept. of Biology, University of Washington, Seattle, WA 98195-1800, U.S.A. 12 13 Correspondence to: C.K West ([email protected]) 14 15 Abstract. Early Eocene climates were globally warm, with ice-free conditions at both poles. Early 16 Eocene polar landmasses supported extensive forest ecosystems of a primarily temperate biota, 17 but also with abundant thermophilic elements such as crocodilians, and mesothermic taxodioid 18 conifers and angiosperms. The globally warm early Eocene was punctuated by geologically brief 19 hyperthermals such as the Paleocene-Eocene Thermal Maximum (PETM), culminating in the 20 Early Eocene Climatic Optimum (EECO), during which the range of thermophilic plants such as 21 palms extended into the Arctic. Climate models have struggled to reproduce early Eocene Arctic 22 warm winters and high precipitation, with models invoking a variety of mechanisms, from 23 atmospheric CO2 levels that are unsupported by proxy evidence, to the role of an enhanced 24 hydrological cycle to reproduce winters that experienced no direct solar energy input yet remained 25 wet and above freezing.
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Metasequoia Glyptostroboides: Fifty Years of Growth in North America John E
Metasequoia glyptostroboides: Fifty Years of Growth in North America john E. Kuser half a century after Metasequoia have grown to remarkable size in the relatively ) glyptostroboides was introduced into short time of fifty years. Perhaps the largest ow,~ the West from China, the dawn red- overall is a tree at Bailey Arboretum, in Locust woods produced from these seeds rank among Valley, New York, which in late August 1998 the temperate zone’s finest trees. Some of them measured 104 feet in height, 17 feet 8 inches in breast-high girth, and 60 feet in crownspread. Several trees in a grove alongside a small stream in Broadmeade Park, Princeton, New Jersey, are now over 125 feet tall, although not as large in circumference or crown as the Bailey tree. In favorable areas, many others are over 100 feet in height and 12 feet in girth. In 1952 a visiting scholar from China, Dr. Hui-Lin Li, planted dawn redwoods from a later seed shipment along Wissahickon Creek in the University of Pennsylvania’s Morris Arboretum in Philadelphia. Li knew the conditions under which Metasequoia did best in its native range: in full sunshine on stream- side sites, preferably sloping south, with water available all summer and season- able variations in temperature like those found on our East Coast-warm sum- mers and cold winters. Today, Li’s grove beside the Wissahickon inspires awe; its trees reach as high as 113 feet and mea- sure up to 12 feet 6 inches in girth. Large dawn redwoods now occur as far north as Boston, Massachusetts, and Syracuse, New York, and as far south as Atlanta, Georgia, and Huntsville, Alabama, and are found in all the states between.
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Metasequoia Dawn Redwood a Truly Beautiful Tree
Metasequoia Dawn Redwood A Truly Beautiful Tree Metasequoia glyptostroboides is considered to be a living fossil as it is the only remaining species of a genus that was widespread in the geological past. In 1941 it was discovered in Hubei, China. In 1948 the Arnold Arboretum of Harvard University sent an expedition to collect seed, which was distributed to universities and botanical gardens worldwide for growth trials. Seedlings were raised in New Zealand and trees can be seen in Christchurch Botanical Gardens, Eastwoodhill and Queens Gardens, Nelson. A number of natural Metasequoia populations exist in the wetlands and valleys of Lichuan County, Hubei, mostly as small groups. The largest contains 5400 trees. It is an excellent tall growing deciduous tree to complement evergreens in wetlands, stream edge plantings to control slips, and to prevent erosion in damp valley bottoms where other forestry trees fail to grow. Spring growth is a fresh bright green and in autumn the foliage turns a A fast growing deciduous conifer, red coppery brown making a great display. with a straight trunk, numerous It is also a most attractive winter branch silhouette. While the foliage is a similiar colour in autumn to that of swamp cypress (Taxodium), it is a branches and a tall conical crown, much taller erect growing tree, though both species thrive in moist soil growing to 45 metres in height and conditions. We import our seed from China and the uniformity of the seedling one metre in diameter. crop is most impressive. The timber has been used in boat building. Abies vejari 20 years old on left 14 years old on right Abies Silver Firs These dramatic conical shaped conifers make a great statement in the landscape, long-lived and withstanding the elements.
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Metasequoia Glyptostroboides Hu & Cheng of Taxodiaceae: Newly Recorded Endangered Conifer to the Flora of Pakistan
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Metasequoia Glyptostroboides Common Name: Dawn Redwood Family Name
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