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首页> 外文期刊>Novon >Polystichum Manickamianum (dryopteridaceae), A New Speciesrnfrom South India
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Polystichum Manickamianum (dryopteridaceae), A New Speciesrnfrom South India

机译：印度南部的新物种Polystichum Manickamianum（dryopteridaceae）

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摘要

A new pteridophyte species, Polystichum manickamianum Benniamin, Fraser-Jenkins & Irudayaraj, is described and illustrated from the Agasthiar Hills, South Western Ghats, South India. It is a member of Polystichum Roth sect. Macro-polystichum Daigobo (Dryopteridaceae) and is distinguished from its nearest relatives by its relatively short, wide fronds with large, ovate-rhombic, crenate, dark green pinnules with submarginal sori, sparsely hairy upper stipe, rachis, and costae, and by the absence of subapical proliferous bulbils on the rachis. It is endemic to Tamil Nadu, South India, and is considered to he Critically Endangered (CR) based on IUCN Red List criteria. A key is provided to South Indian Polystichum, and some problematic related names are discussed. A lectotype is designated for Aspidium tacticopterum Kunze. Polystichum kunthia-num B. K. Nayar & Geevarghese is newly synony-mized into P. subinerme (Kunze) Fraser-Jenkins.
机译：在印度南部西南高止山脉的阿加斯提亚丘陵地区描述并举例说明了一种新的蕨类植物物种，即Polystichum manickamianum Benniamin，Fraser-Jenkins和Irudayaraj。它是Polystichum Roth教派的成员。大型poly科（Dryopteridaceae）与它的最近亲缘植物的区别在于其较短而宽的叶状体，具大的卵形菱形，形，深绿色针状，具边缘下索里，稀疏的毛状上柄，轴突和肋前缘，并且由轴上不存在根尖下增殖的子房。它是印度南部泰米尔纳德邦的特有种，根据IUCN红色名录标准，被认为是极度濒危（CR）。提供了南印度Polystichum的密钥，并讨论了一些有问题的相关名称。一个选型被指定为Taspium tacticopterum Kunze。新近发展成的Polystichum kunthia-num B. K. Nayar＆Geevarghese被归类为P. subinerme（Kunze）Fraser-Jenkins。

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