| Agathis dammara | |
|---|---|
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Araucariales |
| Family: | Araucariaceae |
| Genus: | Agathis |
| Species: | A. dammara |
| Binomial name | |
| Agathis dammara | |
| Synonyms [2] | |
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Agathis dammara, commonly known as the Amboina pine or dammar pine, [3] is a coniferous timber [4] tree native to Sulawesi, the Maluku Islands and the Philippines. [1]
Agathis dammara is a medium-large conifer up to 60 m (200 ft) tall and 1.8 m (5 ft 11 in) dmh[ clarification needed ] [5] [6] found in lowland to upland tropical rainforests as well as lowland to lower montane rainforests. [7] It belongs to the family Araucariaceae [8] , widespread throughout the Jurassic, Cretacic and Paleogene periods [9] and emerging in the Early Jurassic (around 201 Ma) [10] , but now confined to the southern hemisphere. [11] Mature specimens are described as long clear boles with an emergent crown of first-order branches. The bark has been described to be of various gray tones and covered with resin blisters. The leaves have been described to be thick and highly variable in color in every tree. [5] [6] This tree is a source of dammar gum, also known as cat-eye resin, and is also used as timber. [7]
When first discovered and listed as a species it was placed in the genus Pinus (Lambert, 1803), and then later with the firs, Abies (Poir 1817), and then with its own genus, Dammara. It was first recognised as being part of Agathis in 1807, when it was listed as Agathis loranthifolia, and beyond that with species names beccarii, celebica and macrostachys, although it acquired many more names before dammara was settled on.[ citation needed ]
Agathis celebica and Agathis philippinensis were previously considered distinct species but since 2010 have been synonymous with Agathis dammara. [1]
In polymer chemistry and materials science, a resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses mainly on naturally occurring resins.
Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta, also known as Coniferophyta or Coniferae. The division contains a single extant class, Pinopsida. All extant conifers are perennial woody plants with secondary growth. The great majority are trees, though a few are shrubs. Examples include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews. As of 2002, Pinophyta contained seven families, 60 to 65 genera, and more than 600 living species.
Araucariaceae – also known as Araucarians – is a family of coniferous trees, with three living genera, Araucaria, Agathis, and Wollemia. While the family was a common component of the flora globally during the Jurassic, Cretaceous and Paleogene periods, in their native distribution they are now largely confined to the Southern Hemisphere, except for a few species of Agathis in Malesia.
The Pinaceae, or pine family, are conifer trees or shrubs, including many of the well-known conifers of commercial importance such as cedars, firs, hemlocks, piñons, larches, pines and spruces. The family is included in the order Pinales, formerly known as Coniferales. Pinaceae have distinctive cones with woody scales bearing typically two ovules, and are supported as monophyletic by both morphological trait and genetic analysis. They are the largest extant conifer family in species diversity, with between 220 and 250 species in 11 genera, and the second-largest in geographical range, found in most of the Northern Hemisphere, with the majority of the species in temperate climates, but ranging from subarctic to tropical. The family often forms the dominant component of boreal, coastal, and montane forests. One species, Pinus merkusii, grows just south of the equator in Southeast Asia. Major centres of diversity are found in the mountains of southwest China, Mexico, central Japan, and California.
Wollemia is a genus of coniferous trees in the family Araucariaceae, endemic to Australia. It represents only one of three living genera in the family, alongside Araucaria and Agathis. The genus only has a single known species, Wollemia nobilis, commonly known as the Wollemi Pine which was discovered in 1994 in a temperate rainforest wilderness area of the Wollemi National Park in New South Wales. It was growing in a remote series of narrow, steep-sided, sandstone gorges 150 km (93 mi) north-west of Sydney. The genus is named after the National Park.
Araucaria is a genus of evergreen coniferous trees in the family Araucariaceae. While today they are largely confined to the Southern Hemisphere, during the Jurassic and Cretaceous they were globally distributed. There are 20 extant species in New Caledonia, Norfolk Island, eastern Australia, New Guinea, Argentina, Brazil, Chile and Uruguay.
Agathis, commonly known as kauri or dammara, is a genus of evergreen coniferous trees, native to Australasia and Southeast Asia. It is one of three extant genera in the family Araucariaceae, alongside Wollemia and Araucaria. Its leaves are much broader than most conifers. Kauri gum is commercially harvested from New Zealand kauri.
Araucaria bidwillii, commonly known as the bunya pine, banya or bunya-bunya, is a large evergreen coniferous tree in the family Araucariaceae which is endemic to Australia. Its natural range is southeast Queensland with two very small, disjunct populations in northeast Queensland's World Heritage listed Wet Tropics. There are many planted specimens on the Atherton Tableland, in New South Wales, and around the Perth metropolitan area, and it has also been widely planted in other parts of the world. They are very tall trees – the tallest living individual is in Bunya Mountains National Park and was reported by Robert Van Pelt in January 2003 to be 51.5 m (169 ft) in height.
Dammar, also called dammar gum, or damar gum, is a resin obtained from the tree family Dipterocarpaceae in India and Southeast Asia, principally those of the genera Shorea or Hopea. The resin of some species of Canarium may also called dammar. Most is produced by tapping trees; however, some is collected in fossilised form on the ground. The gum varies in colour from clear to pale yellow, while the fossilised form is grey-brown. Dammar gum is a triterpenoid resin, containing many triterpenes and their oxidation products. Many of them are low molecular weight compounds, which easily oxidizes and photoxidizes.
The New Caledonia rain forests are a terrestrial ecoregion, located in New Caledonia in the South Pacific. It is a tropical moist broadleaf forest ecoregion, part of the Australasian realm.
Shorea is a genus of about 196 species of mainly rainforest trees in the family Dipterocarpaceae. The genus is named after Sir John Shore, the governor-general of the British East India Company, 1793–1798. The timber of trees of the genus is sold under the common names lauan, luan, lawaan, meranti, seraya, balau, bangkirai, and Philippine mahogany.
Agathis robusta, commonly known as Dundathu pine, kauri pine, Queensland kauri (pine), Australian kauri (pine) or smooth-barked kauri, is a coniferous tree in the family Araucariaceae. Although some common names use the word 'pine' it is not a true pine, having leaves rather than needles. It has a disjunct distribution, occurring in Papua New Guinea and two locations in Queensland, Australia.
Agathis macrophylla known as Pacific kauri, is a coniferous tree native to the islands of the southwestern Pacific Ocean in tropical humid lowlands and lower montane regions, notably in Fiji, Vanuatu, and the Santa Cruz Islands. The Pacific kauri is one of the largest and fastest growing species in its genus, and is important in forestry.
Agathis atropurpurea, commonly known as the blue kauri, and occasionally as the black kauri or purple kauri, is a species of conifer in the very ancient plant family Araucariaceae. The family was distributed almost worldwide during the Jurassic and Cretaceous periods, but is now mostly confined to the Southern Hemisphere. This species is endemic to a small part of northeastern Queensland, Australia.
Agathis flavescens is a species of conifer in the family Araucariaceae. It is sometimes considered a variety of Agathis dammara.
Agathis lenticula is a tree of Borneo in the conifer family Araucariaceae. The specific epithet lenticula is from the Latin meaning "like a double-convex lens", referring to the leaf shape.
Agathis ovata, the mountain kauri, is a species of conifer, genus Agathis in the family Araucariaceae. It is found only on the southwest Pacific island of New Caledonia. It is threatened by habitat loss.
Agathis silbae is a species of conifer in the family Araucariaceae. It is found only on the island of Espiritu Santo in Vanuatu.
Agathis borneensis, also known as Borneo kauri, is a species of conifer in the family Araucariaceae.
"Agathis" jurassica is an extinct coniferous tree found in the Talbragar Fish Beds of New South Wales. The beds were discovered in 1889 near the Farrs Hills in the Talbragar River valley. Specimens from the area were briefly examined by Australian palaeontologists upon discovery and published by R. Etheridge Jr. later that year. The initial classification identified Agathis jurassica as Podozamites lanceolatus. This name was upheld through further inspections by Walkom in 1921, but the species was reclassified as Agathis jurassica in 1981 by Mary White. In 1999, placement in Agathis was doubted, and the species has been referred to as Podozamites jurassica. The species is found predominantly in the Southern Hemisphere with marginal expanses into the Northern Hemisphere.
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