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The ''Ravensara'' is a Madagascar endemic genus of trees and shrubs flowering plants belonging to the family Lauraceae. Ravensare species produce Essential Oils from their bark, their leaves and their fruit. The genus is composed of species native to central and eastern Madagascar. In a recent generic classification of Lauraceae based on DNA sequence data by Chanderbali et al. in 2001, was found to be part of a strongly supported clade that also includes Beilschmiedia, Potameia, Cryptocarya, Endiandra and Aspidostemon.〔http://sciencepress.mnhn.fr/en/periodiques/adansonia/28/1/revision-d-aspidostemon-rohwer-richter-lauraceae-genre-endemique-de-madagascar〕 ==Overview== The best known species of ''Ravensara'' is ''Ravensara aromatica''. The essential oil extracted from its leaves is used for its medicinal properties. In Madagascar this genus of trees are commonly called Hazomanitra, tree that smells. They named local bark of ''Ravensara anisata'' Havozo. ''Ravensara'' is a genus of evergreen laurel species that include currently more than 10 species, mostly in laurel forest habitat. The genus Ravensara, endemic to Madagascar, was described by Sonnerat in 1782 with the single species Ravensara aromatica. Kostermans maintained Ravensara in his treatment of the Lauraceae for the "Flore de Madagascar et des Comores" and in a later publication from 1958 in which he described an additional nine new species of Ravensara. Currently, the estimated number of species of Ravensara is about 30. Ravensara has always been considered closely related to Cryptocarya. The malgache species placed in Ravensara and Cryptocarya are still poorly known, a transfer of all Ravensara species to Cryptocarya is not justified once revised the DNA isolation. Physically the fruits of Ravensara are ruminate, whereas malgache Cryptocarya they are not. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ravensara」の詳細全文を読む スポンサード リンク
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