Abstract
Polypodiodes simonsiana Fraser-Jenk. et Shalimov, a new species of polypodiaceous fern from north eastern India and Myanmar, is described and illustrated. It is related to P. amoena (Wall. ex Mett.) Ching and P. niponica (Mett.) Ching, but is characterised by its prominently backward-deflexed, acutely pointed, elongatedtriangular lower and mid pinnae, tapering evenly from their wide bases to their narrow acute apices. Its IUCN conservation status is assessed as VU (Vulnerable).
Highlights
The genus Polypodiodes Ching is related to Goniophlebium (Blume) C
Polypodioides species are fairly narrowly distributed in subtropical Asia, from Japan, Taiwan and China to northern India and in Myanmar, Thailand and the Indochinese Peninsula, and most of them are either epiphytes or lithophytes occurring at upper-mid to higher altitude
After 2008, he realised the true identity of P. wattii, which is a synonym of P. niponica (Mett.) Ching, despite being separated as a variety by RödlLinder (1990) and even as a species by Lu and Hovenkamp (2013)
Summary
The genus Polypodiodes Ching is related to Goniophlebium (Blume) C. Polypodioides species are fairly narrowly distributed in subtropical Asia, from Japan, Taiwan and China to northern India and in Myanmar, Thailand and the Indochinese Peninsula, and most of them are either epiphytes or lithophytes occurring at upper-mid to higher altitude They are of similar aspect to the more northerly genus Polypodium L. and in older British-Indian literature were so placed. After 2008, he realised the true identity of P. wattii, which is a synonym of P. niponica (Mett.) Ching, despite being separated as a variety by RödlLinder (1990) and even as a species by Lu and Hovenkamp (2013) This left the present species without a name, which he provided for it (Ebihara et al, 2012; Fraser-Jenkins, 2012) as Polypodiodes simonsiana, named after the first botanist to collect it. The name was not validated until now, so we validate it here and describe the species below
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