英文单词：calyptrogen

中文含义：

叶突植物；具叶突生成分生组织的植物

英语词性：

noun

美式音标：

[kal-uhp-truh-jen]

同义词：

none

易混淆单词：

none

双语例句：

1. The calyptrogen is the tissue of ancient plants that is responsible for the growth of roots.
2. Some cycads possess both the calyptrogen and rhizophore, while others lack the calyptrogen altogether.