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Swietenia macrophylla, commonly known as mahogany, [3] Honduran mahogany, [3] Honduras mahogany, [4] or big-leaf mahogany [5] is a species of plant in the Meliaceae family. It is one of three species that yields genuine mahogany timber ( Swietenia ), the others being Swietenia mahagoni and Swietenia humilis .
Mahogany is a straight-grained, reddish-brown timber of three tropical hardwood species of the genus Swietenia, indigenous to the Americas [1] and part of the pantropical chinaberry family, Meliaceae. Mahogany is used commercially for a wide variety of goods, due to its coloring and durable nature.
As a timber, both Swietenia macrophylla and Swietenia mahogoni are both grown in plantations in several Asian countries such as Fiji, Indonesia, India, and Bangladesh and this plantation mahogany timber is the main source of the world's current supply of "genuine mahogany", due to cultivation and trade of it in its native locations being ...
Meliaceae, the mahogany family, is a flowering plant family of mostly trees and shrubs (and a few herbaceous plants, mangroves) in the order Sapindales.. They are characterised by alternate, usually pinnate leaves without stipules, and by syncarpous, [2] apparently bisexual (but actually mostly cryptically unisexual) flowers borne in panicles, cymes, spikes or clusters.
The timber of Khaya is called "African mahogany", with wood properties generally regarded as the closest to genuine mahogany. [2]The seeds of K. senegalensis have an oil content of 52.5%, consisting of 21% palmitic acid, 10% stearic acid, 65% oleic acid, and 4% "unidentifiable acid" [3]
Scientific name Common name Family Conservation status Conifers; Araucariaceae: monkey-puzzle family; Agathis: kauri ; Agathis australis: kauri; New Zealand kauri Araucariaceae (monkey-puzzle family) Agathis lanceolata: red kauri Araucariaceae (monkey-puzzle family) Agathis robusta: Queensland kauri; smooth bark kauri; Dundathu pine
Wheat origins by repeated hybridization and polyploidy. [59] Not all species are shown. Some wheat species are diploid, with two sets of chromosomes, but many are stable polyploids, with four sets of chromosomes or six . [59] Einkorn wheat (Triticum monococcum) is diploid (AA, two complements of seven chromosomes, 2n=14). [60]
Wheat origins by repeated hybridization and polyploidy (e.g. "6N" means 6 sets of chromosomes per cell rather than the usual 2). Only a few of the wheat species involved are shown. The goatgrass species involved are not known for certain. [6] Aegilops is important in wheat evolution because of its