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Diarthron is a genus of flowering plant in the family Thymelaeaceae. The precise limits of the genus are uncertain. When broadly circumscribed to include Dendrostellera and Stelleropsis, it consists of annual and perennial herbaceous plants and small shrubs, with reddish, white or green flowers lacking petals, and is found in central and south-west Asia and south-east Europe.
When broadly circumscribed (i.e. including Dendrostellera and Stelleropsis), Diarthron is a genus of annual or perennial herbaceous plants or short deciduous shrubs. Prior to a review in 1982, only the annual species were placed in Diarthron, with the perennial herbs being in Stelleropsis and the shrubs in Dendrostellera. The flowers lack petals. There are usually four (sometimes five) sepals, united at the base into a tube with lobes at the end, reddish, white or green in colour. The ovary has a single chamber (locule). The fruit is dry with the seed enclosed in a thin glossy black pericarp.[2]
The genus Diarthron was first described in 1832 by Nikolai Turczaninow for the species Diarthron linifolium. Many species were added to the genus in 1982 by Kit Tan, being transferred from related genera.[3][4] A 2006 study suggested that as circumscribed, Diarthron is not monophyletic, so that Dendrostellera and Stelleropsis which Tan had merged into Diarthron should be reinstated.[5] Studies in 2002 and 2009, based on chloroplast DNA, placed Diarthron in a small group of related genera, sister to a clade consisting of Thymelaea and Daphne; however for most genera only one species was included.[6][7]
Diarthron
The Plant List (version 1.1, September 2013) recognizes the following species:[8]
Diarthron species are found in central and south-west Asia, and in south-east Europe, including the European part of Russia. [2]
Diarthron is a genus of flowering plant in the family Thymelaeaceae. The precise limits of the genus are uncertain. When broadly circumscribed to include Dendrostellera and Stelleropsis, it consists of annual and perennial herbaceous plants and small shrubs, with reddish, white or green flowers lacking petals, and is found in central and south-west Asia and south-east Europe.
Diarthron es un género con 20 especies de plantas pertenecientes a la familia Thymelaeaceae.[2]
Diarthron es un género con 20 especies de plantas pertenecientes a la familia Thymelaeaceae.
Diarthron é um género botânico pertencente à família Thymelaeaceae[1].
Diarthron é um género botânico pertencente à família Thymelaeaceae.
«Diarthron — World Flora Online». www.worldfloraonline.org. Consultado em 19 de agosto de 2020粟麻属（学名：Diarthron）是瑞香科下的一个属。该属共有Diarthron linifolium和Diarthron vesiculosum两种，分布于中亚。[1]
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