V2EX eudicot

Eudicot

释义 Definition

真双子叶植物:被子植物(开花植物)中的一大类群,典型特征包括花粉多为三沟/三孔(tricolpate),叶脉常呈网状,维管束排列与生长方式也常与单子叶植物不同。(注:日常也常泛称为“双子叶植物”,但现代分类中“eudicot”更精确;另有较早分化的“基部被子植物/基部双子叶类群”等不完全等同于真双子叶。)

发音 Pronunciation (IPA)

/judkt/

例句 Examples

Eudicots include many common garden plants.
真双子叶植物包括许多常见的园艺植物。

Unlike most monocots, many eudicots show net-like leaf veins and typically produce tricolpate pollen, traits used in plant classification.
与多数单子叶植物不同,许多真双子叶植物的叶脉呈网状,并且通常产生三沟花粉,这些特征常用于植物分类。

词源 Etymology

eu- 来自希腊语,意为“真正的、良好的”;dicot 是 “dicotyledon(双子叶植物)” 的缩略,指“有两片子叶”。合起来 eudicot 强调“真正意义上的双子叶类群”,是现代植物系统分类中常用的术语。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Campbell Biology(《坎贝尔生物学》):在被子植物分类与系统发育章节中常用 eudicot 区分主要类群。
  • Raven Biology of Plants(《雷文植物生物学》):用于描述真双子叶植物的形态特征与演化关系。
  • Plant Systematics: A Phylogenetic Approach:在系统分类框架下频繁出现 eudicot 作为关键类群名称。
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