首页    期刊浏览 2025年06月10日 星期二
登录注册

文章基本信息

  • 标题:A new species, a new combination and a new subsection of Cycas from Odisha, northern Eastern Ghats of India
  • 本地全文:下载
  • 作者:Rita Singh ; P. Radha ; J.S. Khuraijam
  • 期刊名称:Asian Journal of Conservation Biology
  • 印刷版ISSN:2278-7666
  • 出版年度:2015
  • 卷号:4
  • 期号:1
  • 页码:3-14
  • 出版社:Turtle Conservation & Research Programme
  • 摘要:Cycas circinalis var. orixensis Haines (Cycadaceae) is raised to species rank and a new species, Cycas nayagarhensis is described and illustrated from the state of Odisha in the northern Eastern Ghats of India. Both of these Odisha Cycas species described here, have characteristic megasporophylls having spinescent lateral teeth and a spear-like long apical spine. Male cones are the most peculiar in having microsporophylls with upturned, one to variously forked apical spines. Cycas nayagarhensis is distinguished from C. orixensis by its massive arborescent stem, large male cones, with microsporophylls having entire or variously forked apical spine and radially compressed ovules. A comparative table of the northern Eastern Ghats Cycas and a key to all the Indian species are provided. The infrageneric classification of the genus Cycas is modified and a new Subsection Orixenses under Section Cycas is created here to accommodate these two morphologically distinct endemic taxa from Odisha
  • 关键词:Cycas orixensis; Cycas nayagarhensis; Eastern Ghats; Odisha; India
国家哲学社会科学文献中心版权所有