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买麻藤

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Ephedra'.'' and Welwitschia as well as Gnetum.

植物'。''和千岁兰属以及买麻藤属。

Plants having small unisexual flowers and fleshy or winged fruit: in some classifications includes the genera ''.

一植物科花小单性果实肉质;在一些分类中包括麻黄属植物和千岁兰属以及买麻藤属。

Vessels are found in most angiosperms, the gymnosperm order Gnetales, and a few other plants such as bracken.

绝大多数被子植物、买麻藤目 Gnetales 和少数一些植物如欧洲蕨具有导管。

As a result of gymnosperm, especially hemp fizzles out and sweetberry jointfir is give priority to with unisexual flower, imagining primitive angiosperm consequently is an unisexual flower.

由于裸子植物,尤其是麻黄和买麻藤等都是以单性花为主,因而设想原始被子植物是具单性花。

The methods and data of phytomorphology. phytotomy, phytoembryology. palynology. phytocytota.xonomy. phytochemistry and molecular systematics are referred to summarize the systematic status of the genus Gnetum in this paper.

本文参考植物形态学、植物解剖学、植物胚胎学、孢粉学、植物细胞分类学、植物化学和分子系统学等方面的资料,对买麻藤属植物的系统学位置进行总结。

Plants having small unisexual flowers and fleshy or winged fruit: in some classifications includes the genera Ephedra and Welwitschia as well as Gnetum.

一植物科花小单性果实肉质;在一些分类中包括麻黄属植物和千岁兰属以及买麻藤属。

Most gymnosperms retain archegonia except for the most advanced genera Gnetum and Welwitschia.

除了买麻藤属和百岁兰属以外大多数裸子植物还保留有颈卵器。

It is the first time that these phenomena were observed: Two nuclei are surrounded by plasma and locate at the central of the female gametophyte and the others nuclei are positioned at the fringe of the female gametophyte; Before the pollen tube enters the female gametophyte. the nuclei in chalazal end begin splitting of plasma and form multinuclear cell.4. The pollens of Gnetumc are spherical or applanate with single aperture. The ornamentation of exine is spine. The basis part of spine is lenience and the top part of spine is tip or obtuse sphere.

首次在买麻藤属植物的雌配子体中观察到2个游离核位于配子体的中央位置,且被一团原生质所包围的,其余的游离核位于边缘的现象以及花粉管进入雌配子体前,合点端的核已经发生胞质分裂形成多核细胞的现象 4、买麻藤的花粉近球形或扁平型,有单萌发孔,外壁表面具小刺状纹饰,小刺基部宽大,末端尖或钝圆。

Ephedras: in some classifications included in the Gnetaceae.

麻黄属植物;一些分类包括在买麻藤科。

Gnetifolin A was a potentially bioactive new compound isolated from Gnetum parvifolium Warb.

买麻藤甲素是从小叶麻藤Gnetum parvifolium

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