摘要
苏铁(Cycas)与苏铁蕨(Brainea)均为国家重点保护野生植物,两者外部形态非常相似,分布生境亦类似,然而两者在分类学上属不同的门,区别非常大。文章从起源、形态学上的生殖器官、叶脉、叶片形态、叶柄以及解剖学上的差异进行了分析研究。指出了目前面临的威胁,提出了保护措施。
Both Cycas and Brainea are wild plants of national priority protection, which are similar in external forms and distributed habitat. But they belong to different phylum with large differences in term of taxonomy. The differences in origin, physiologic organ, leaf vein, leaf form, leafstalk and anatomy are discussed, and threats confronted at present and countermeasures for protection are one by one put forward.
出处
《林业调查规划》
2006年第1期88-90,共3页
Forest Inventory and Planning
关键词
差异比较
孑遗植物
苏铁
苏铁蕨
comparison in difference
relic plant
Cycas
Brainea
