›› 2016, Vol. 45 ›› Issue (02): 150-152.DOI: 10.3969/j.issn.1009-7791.2016.02.011

• 植物生态与资源分类 • 上一篇    下一篇

苏铁Cycas revoluta两种特异形态特征

潘爱芳   

  1. (福州植物园,福建 福州 350012)
  • 收稿日期:2016-04-27 修回日期:2016-08-14 出版日期:2016-06-10 发布日期:2016-06-10
  • 通讯作者: 潘爱芳
  • 作者简介:潘爱芳,硕士,高级工程师,从事植物资源保护及其开发利用研究。
  • 基金资助:
    福建省林业科学研究项目(闽林科[2011]3号)

Preliminary Study on Abnormal Morphological Characters of Cycas revoluta

PAN Ai-fang   

  1. (Fuzhou Botanical Garden, Fuzhou 350012, Fujian China)
  • Received:2016-04-27 Revised:2016-08-14 Online:2016-06-10 Published:2016-06-10
  • Contact: PAN Ai-fang

摘要: 在开展苏铁Cycas revoluta形态特征观测中,发现一株苏铁根蘖苗有5片羽片生长异常,其中一片比其他正常羽片长且中脉出现分叉(即一羽多脉现象),另外4片基部两两贴生。另一株苏铁的小孢子叶球生长奇特,其顶部为莲座状,形似大孢子叶球。这两种异常现象为苏铁类植物的系统分类与演化研究提供了新资料。

关键词: 苏铁, 叶脉分叉, 小孢子叶球, 异常特征, 新纪录

Abstract: Two kinds of morphological anomalies in Cycas revoluta were observed in Fuzhou, Fujian Province. The first was that a sucking bud seedling had grown 5 pieces of abnormal leaflets, one piece with a bifurcated midrib was longer than normal leaflets, and another had a double-pieced base. And the second was that a male cone had a rosette tip, as if there were a female cone on its top. These kinds of anomaly would provide some new basic data for cycad systematics and evolution.

Key words: Cycas revoluta, bifurcate midrib, male cone, anomaly, new record

中图分类号: