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爬树蕨的解剖学研究
黄玉源; 周厚高; 黎桦; 周琼;
广西农业大学
摘要:
本文对爬树蕨(Arthropterisobliterata(R.Br.)J.Sm)孢子体各主要器官进行了解剖学研究及对孢子进行了电子显微镜扫描观察,研究结果表明;茎的中柱具有两个新月形的维管束;幼茎的中部有髓.在较老的茎,髓部及中柱周围的细胞均特化为厚壁细胞.根属二原型中柱.木质分化方式是外始式;在对正后生木质部的两侧的皮层有几层特化为厚壁细胞。叶的叶肉细胞不分化出栅栏组织和海绵组织,为等面对。孢子囊具有纵向环带,孢子的形状、外壁的纹饰和裂缝情况均与以前的研究有所不同。
关键词:  爬树蕨  解剖学  
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