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Lynn Valley Tree

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The Lynn Valley Tree was one of the tallest known Coast Douglas-fir ( Pseudotsuga menziesii var. menziesii ), at a measured height of 126.5 meters (415 ft). It was cut down by the Tremblay Brothers, at Argyle Road in 1902 on the property of Alfred John Nye in Lynn Valley , now part of metropolitan Vancouver , B.C. In 1912, Alfred Nye told historian Walter Mackay Draycott that the tree had first drawn his attention because of its vast columnar bole, and that it towered above the neighboring forest. After it was felled, Nye told Draycott he had measured its length at 125 meters (410 ft), with a remaining stump height of 1.52 meters (5 ft 0 in) where its diameter was 4.34 meters (14.2 ft) across the butt, and the bark was 13.5 inches (34 cm) thick. Since that time, in the lower valley where the tree grew, the entire old-growth forest has been logged, including a nearby 4.24 meters (13.9 ft) diameter fir tree that contained 1,280 rings, and another fir tree felled in the same valley that was said to have measured 107.3 m (352 ft) tall.

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14-550: It was one of the tallest trees ever recorded on the planet, exceeded only by a small number of Australian mountain ash ( Eucalyptus regnans ) other Douglas firs, and perhaps several historic Coast Redwood. In addition, a giant sequoia known as the Father of the Forest from Calaveras grove reportedly measured 435 feet (133 m) after it fell many centuries ago. However, Douglas firs seem to have more routinely reached such heights in

28-420: A team of biologists led by George Koch of Northern Arizona University calculated the theoretical maximum tree height or the point at which opposing forces balance out and a tree stops growing. This point lies somewhere between 122 and 130 m (400 and 426 feet). On the one hand, the researchers found, trees in forests "desire" to grow as tall as possible to overtake neighboring trees and reach stronger sunlight. On

42-541: Is a list of the tallest known species of trees, as reflected by measurements of the tallest reliably-measured individual specimen. Although giant trees grow in both tropical and temperate regions, they are very restricted geographically and phylogenetically. All the known giant trees occur in mesic climates, and nearly all of them are found in three regions: western North America from California to British Columbia , Southeast Asia (especially Borneo ) and southeastern Australia (especially Tasmania ). The following are

56-462: Is a tree that typically grows to a height of 30 m (98 ft) and forms a lignotuber . It has rough, finely fibrous bark on most or all of the trunk and base of the larger branches, smooth greyish bark above. The leaves on young plants and on coppice regrowth are arranged in opposite pairs, lance-shaped or curved, 28–55 mm (1.1–2.2 in) long, 2–11 mm (0.079–0.433 in) wide and sessile . Adult leaves are arranged alternately along

70-419: The stamens are white. Flowering mainly occurs from November to January and the fruit are cup-shaped to hemispherical, 4–7 mm (0.16–0.28 in) long and wide. Eucalyptus amygdalina was first formally described in 1806 by Jacques Labillardière in his book Novae Hollandiae Plantarum Specimen . The specific epithet ( amygdalina ) means "almond". Black peppermint is endemic to Tasmania where it

84-467: The latter case, exceed the maximum height a tree can attain as calculated by some theorists, or just within the upper limits according to other theorists. Given widespread reports that trees have been measured after felling as exceeding this maximum height, it lends some credibility to the idea that extremely tall trees growing in especially foggy environments are able to reverse the transpiration stream inside them and maintain adequate water supply to parts of

98-403: The other hand, gravity makes it more and more difficult to haul water upwards from the roots to the canopy as the tree grows, and leaves thus become smaller near the top. They discovered that despite the moistness of the ground far below, the leaves at the treetops struggle to get enough water, so they are effectively living in a constant drought. The difficulty of getting water so far up into

112-512: The past, with anecdotal reports of 350-ft to over 400-ft-tall trees being relatively numerous in old records. Despite measurements of such size being generally considered unreliable, there is a reliable record of a Douglas fir exceeding 140 meters (460 ft) in height: the Nooksack Giant was measured at 142 meters (466 ft) tall with a tape after the tree was cut down in the 19th century. Both of these heights are close to or, in

126-436: The real height. Eucalyptus amygdalina Eucalyptus amygdalina , commonly known as black peppermint , is a species of flowering plant that is endemic to Tasmania. It is a small to medium-sized tree with rough bark on park of the trunk, smooth grey to brown bark above, lance-shaped to linear adult leaves, oval to club-shaped flower buds, white flowers and cup-shaped to hemispherical fruit. Eucalyptus amygdalina

140-461: The sky is what ultimately constrains growth. Other researchers have developed models of maximum height for Coast Douglas-fir ( Pseudotsuga menziesii var. menziesii ) trees that yield similar estimates of 109–138 meters (357–452 feet), a range that includes the height of the tallest reliably-measured historical (dead) specimen, a 126-meter tree. There are many historical and contemporary claims of superlative height for species beyond those listed in

154-536: The stems, the same shade of bluish green on both sides, lance-shaped to linear, 55–120 mm (2.2–4.7 in) long and 4–12 mm (0.16–0.47 in) wide on a petiole 4–20 mm (0.16–0.79 in) long. The flowers are borne in groups of eleven to fifteen or more in leaf axils on a peduncle 4–10 mm (0.16–0.39 in) long, the individual flowers on a pedicel 1–5 mm (0.039–0.20 in) long. The buds are oval to club-shaped, 3–5 mm (0.12–0.20 in) long, 2–3 mm (0.079–0.118 in) wide and

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168-740: The table above. For example, several articles published in 1878 describe an Eucalyptus amygdalina exceeding 380 feet (120 m) and others nearing 420 feet (130 m) up to 500 feet (150 m), including the Nooksack Giant which was measured using a tape at 465 feet (142 m) after being cut down. The heights of the tallest trees in the world have been the subject of considerable dispute and much exaggeration. Modern verified measurements with laser rangefinders or with tape drop measurements made by tree climbers (such as those carried out by canopy researchers), have shown that some older tree height measurement methods are often unreliable, sometimes producing exaggerations of 5% to 15% or more above

182-399: The tallest reliably-measured specimens from the top species. This table contains information on all species for which at least one specimen has been reliably measured at 80 meters (262 feet) or taller. Two main opposing forces affect a tree 's height; one pushes it upward while the other holds it down. By analyzing the interplay between these forces in coast redwoods ( Sequoia sempervirens ),

196-508: The tree above that height. There are no known surviving photographs of the Lynn Valley Tree. 49°20′27″N 123°02′19″W  /  49.340725°N 123.038607°W  / 49.340725; -123.038607 This tree -related article is a stub . You can help Misplaced Pages by expanding it . This British Columbia -related article is a stub . You can help Misplaced Pages by expanding it . List of tallest trees This

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