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首页> 外文期刊>Systematic Botany >Two New Species of Merostachys (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) from Minas Gerais state, Brazil
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Two New Species of Merostachys (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) from Minas Gerais state, Brazil

机译：来自巴西米纳斯吉拉斯州的两种新种类的Merostachys（禾本科：Bambusoideae：Bambuseae：Arthrostylidiinae）

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摘要

Merostachys is the second most species-rich genus of American woody bamboos, and can be recognized by the following combination of features: a solitary primary bud at the midculm nodes that later develops into a truncate or fan-shaped branch complement with numerous smaller subequal branchlets; pseudopetiolate culm leaves with reflexed blades; terminal, racemose synflorescences; and nucoid caryopses. In total, there are 51 described species; of these, 44 are found mainly along the Brazilian Atlantic coast, which is the center of diversity and endemism of the genus. During fieldwork in eastern Minas Gerais state, two previously unknown species of Merostachys (M. espessae and M. fimbriolaminata) were collected and are here described as new and illustrated. Additionally, these species are included in a dichotomous key to the species of Merostachys in eastern Minas Gerais state.
机译：Merostachys是美国木质竹子中第二大物种最丰富的属，可以通过以下特征的组合来识别：中生节的单生初生芽，后来发育成截短或扇形分支补体，具有许多较小的亚等分小枝;假叶柄的茎叶具反折的叶片;末端，消旋花序;和核仁颈肉。总共描述了51种。其中有44个主要在巴西大西洋沿岸发现，巴西大西洋沿岸是该属的多样性和地方性中心。在米纳斯吉拉斯州东部的野外工作期间，收集了两个以前未知的梅罗纲动物（M. espessae和M. fimbriolaminata），在此进行了描述和说明。另外，这些物种被包括在米纳斯吉拉斯州东部的梅罗斯塔克斯物种的二分法钥匙中。

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