Chlorocardium rodiei (greenheart) is a species of flowering plant in the family Lauraceae. It is one of two species in the genus Chlorocardium. It is native to Guyana and Suriname in South America.[1] Other common names include cogwood, demerara greenheart, greenhart, ispingo moena,[1]sipiri, bebeeru and bibiru.
It is an evergreentree growing 15 to 30 m tall with a trunk diameter of 35 to 60 cm. The leaves are oppositely arranged and simple with smooth edges. The fruit is a drupe containing a single seed.
Greenheart wood was used to build the gate for the Manchester Dock in Liverpool.
The cyclic bisbenzylisoquinoline alkaloidrodiasine was first isolated from this species. The wood is extremely hard and strong, so hard that it cannot be worked with standard tools. It is durable in marine conditions, so it is used to build docks and other structures, and it was an early choice for fly fishing rods. An estimated 15 to 28% of the original population has been harvested. The species' use as a commercial timber began in the late 18th century, but most of the harvesting has taken place since the introduction of chainsaws in 1967.
The Fram and the Endurance, made famous in the polar expeditions of Amundsen and Shackleton, were the two strongest wooden ships ever constructed and were sheathed in greenheart to prevent them from being crushed by ice.
It is often sought for construction projects in parts of the Caribbean, where wood ants are problematic in conventional pine wood construction. It was also used to build the dock gates in Liverpool, such as the Manchester dock gate. It has been used extensively as marine piling, since it is highly resistant to marine borers. It is also extremely dense, and does not float, therefore requiring special water transport arrangement, and is loaded onto specially constructed pontoons for transport to sawmill or direct shipping overseas. As sawn lumber it requires special treatment, and saws with tungsten carbide teeth, since standard steel saw blades cannot be maintained sharp enough to cut any reasonable quantity.
References
Wikimedia Commons has media related to Chlorocardium rodiei.
^ abcRed List Standards.; Petitions Working Group (2007). "Chlorocardium rodiei". IUCN Red List of Threatened Species. 2007: e.T34688A9878638. doi:10.2305/IUCN.UK.2007.RLTS.T34688A9878638.en. Retrieved 18 November 2021.
External links
Germplasm Resources Information Network: Chlorocardium
(pdf file; Greenheart, p. 7).
January 28, 2023
chlorocardium, rodiei, greenheart, species, flowering, plant, family, lauraceae, species, genus, chlorocardium, native, guyana, suriname, south, america, other, common, names, include, cogwood, demerara, greenheart, greenhart, ispingo, moena, sipiri, bebeeru, . Chlorocardium rodiei greenheart is a species of flowering plant in the family Lauraceae It is one of two species in the genus Chlorocardium It is native to Guyana and Suriname in South America 1 Other common names include cogwood demerara greenheart greenhart ispingo moena 1 sipiri bebeeru and bibiru Chlorocardium rodieiConservation statusData Deficient IUCN 3 1 1 Scientific classificationKingdom PlantaeClade TracheophytesClade AngiospermsClade MagnoliidsOrder LauralesFamily LauraceaeGenus ChlorocardiumSpecies C rodieiBinomial nameChlorocardium rodiei M R Schomb Rohwer et al SynonymsNectandra rodiei Ocotea rodieiIt is an evergreen tree growing 15 to 30 m tall with a trunk diameter of 35 to 60 cm The leaves are oppositely arranged and simple with smooth edges The fruit is a drupe containing a single seed Greenheart wood was used to build the gate for the Manchester Dock in Liverpool The cyclic bisbenzylisoquinoline alkaloid rodiasine was first isolated from this species The wood is extremely hard and strong so hard that it cannot be worked with standard tools It is durable in marine conditions so it is used to build docks and other structures and it was an early choice for fly fishing rods An estimated 15 to 28 of the original population has been harvested The species use as a commercial timber began in the late 18th century but most of the harvesting has taken place since the introduction of chainsaws in 1967 The Fram and the Endurance made famous in the polar expeditions of Amundsen and Shackleton were the two strongest wooden ships ever constructed and were sheathed in greenheart to prevent them from being crushed by ice It is often sought for construction projects in parts of the Caribbean where wood ants are problematic in conventional pine wood construction It was also used to build the dock gates in Liverpool such as the Manchester dock gate It has been used extensively as marine piling since it is highly resistant to marine borers It is also extremely dense and does not float therefore requiring special water transport arrangement and is loaded onto specially constructed pontoons for transport to sawmill or direct shipping overseas As sawn lumber it requires special treatment and saws with tungsten carbide teeth since standard steel saw blades cannot be maintained sharp enough to cut any reasonable quantity References Edit Wikimedia Commons has media related to Chlorocardium rodiei a b c Red List Standards Petitions Working Group 2007 Chlorocardium rodiei IUCN Red List of Threatened Species 2007 e T34688A9878638 doi 10 2305 IUCN UK 2007 RLTS T34688A9878638 en Retrieved 18 November 2021 External links EditGermplasm Resources Information Network Chlorocardium Virtual Tree Guide of the Guyanas Chlorocardium herbarium specimens Guyana Forestry Commission Guyana Woods pdf file Greenheart p 7 Retrieved from https en wikipedia org w index php title Chlorocardium rodiei amp oldid 1085699006, wikipedia, wiki, book, books, library,
