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The Several Abnormality on Strobile of Larix
Author(s): 
Pages: 44-46
Year: Issue:  6
Journal: YINSHAN ACADEMIC JOURNAL

Keyword:  落叶松属畸形孢子叶孢子囊形态建成演化;
Abstract: 作者对包头、北京中科院植物园等处栽培的落叶松属(Larix Mill.)植物所产生的畸形孢子叶球做了调查和解剖观察,发现落叶松属畸形孢子叶球发生几率较高,主要类型有:两性孢子叶球;孢子叶球的基部营养叶远轴面产生小孢子囊(花粉囊),偶尔也可产生大孢子囊(胚珠);珠鳞近轴面偶尔也可产生小孢子囊;一些大孢子叶球或两性孢子叶球的顶端又生出营养枝条.作者认为,从这些畸形现象可直接反应出:小孢子叶、苞鳞和营养叶是同源器官;大、小孢子囊也是同源器官,且在发育早期没有根本的区别.
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