Thanks, Chris ji
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With regards,
J. M. Garg
---------- Forwarded message ---------
From: Chris Fraser-Jenkins <>
Date: Tue 21 Apr, 2020, 9:31 PM
Subject: Re: [efloraofindia:348579] Cheilanthes NOT argentea SN21420
To: J.M. Garg <jmga...@gmail.com>
Oh dear - this really is completely misguided and totally mistaken! Wrong
genus, wrong species. I really think one must update and improve the
identification and naming while posting specimens (often bad quality ones
like this that show nothing to enable an identification), and revise these
regressive old-style names that are completely out of touch with modern
botany.
First the genus - while in previous times all cheilanthoid ferns were
simply called Cheilanthes, nearly everyone nowadays recognises the genus
Aleuritopteris for these farinose ones - also supported molecularly. So
may I suggest Aleuritopteris, instead of Cheilanthes?
Secondly the species, A. argentea is a high-altitude to temperate
species of China, Korea, Japan and Tibet (plus one locality at 3000 m in
the dry inner Himalaya in Central Nepal and another locality in a similar
region in Bhutan). It is not present in peninsular India, nor in the usual
Indo-Himalayan region.
There is a lot of accurate Botanical literature on Indian Aleuritopteris
- but presumably the poster has not heard of any of it. For
Aleuritopteris one needs to see the distribution of the scales on the back
of the frond - stipe, rachis and costae - but this is not shown. It is
also a terrible specimen - all scrumpled up as the collector did not bother
to soak it out flat in a bucket of water before pressing. Totally
inadequate!
As I happen to have specilaised in the genus I can recognise that it is
the common Aleuritopteris anceps, the usual one in South India, and not the
other common South Indian one, A. bullosa. But what's the use of a
specimen so bad as this - or the use of posting it?
Anyway, that's it.
Chris Fraser-Jenkins.
On Tuesday, 21 April 2020, 14:14:27 WEST, J.M. Garg <jmga...@gmail.com>
wrote:
Thanks, Santhan ji.
---------- Forwarded message ---------
From: *Ponnutheerthagiri Santhan* <ponsant...@gmail.com>
Date: Tue, 21 Apr 2020 at 18:37
Subject: [efloraofindia:348579] Cheilanthes argentea SN21420
To: efloraofindia <indiantreepix@googlegroups.com>
*Cheilanthes argentea* (S.G.Gmel) Kunze, Linnaea wild fern from Western
Ghats Tamilnadu.
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