Dear All
I dont agree with the transfer of species under Malaxis to Corymborchis. Following points I want to raise here
1. Generic concept or circumscription of a genus is same for the species of that genus throughout the world. There is defined generic limit for both Malaxis and Corymborkis and if the species are not fitting in Malaxis they will not be fitting in Corymborkis as well.
2. There are other recent developments in the nomenclature of this group and species of Malaxis have been transferred to Dienia, Crepidium, Seidenfia etc. and these transfers are well within the limit of ICBN code. Dr. Almeida has not discussed about these genera.
These statements are premature as I have not seen the Fl. Maharashtra physically and these comments are based on whatever Rashida Ji have sent.
Regards
Dinesh
On Thu, 19 Aug 2010 20:23:13 +0530 wrote
>Thanks Rashida jiThat should settle the issue. Any other thing as I wrote earlier is the matter of Taxonomic judgement.
--
Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297 Mob: 9810359089
http://people.du.ac.in/~singhg45/
On Thu, Aug 19, 2010 at 7:41 PM, Rashida Atthar
wrote:
Dr. Gurcharan ji, Here are the details as requested by you sir for the species under discussion from Flora of Mah, Vol V - A pg 28, 29Corymborkis Thouars
1. Small pseudobulbs present- C. densiflora
1. Pseudobulbs not present- C. versicolor
Five new combinations have been described- C. acuminata (D. Don) Almeida (comb. nov.).
C. intermedia (A. Rich.) Almeida (comb. nov.)
C. latifolia (
J.E.Sm.) Almeida (comb. nov)
C. versicolor (Lind.) Almeida (comb. nov.).
Two explanations of particular interest to the discussion, one on pg 29 under the description of c. acuminata is as follows: "Generic name Malaxis Sw. is not applicable to the generic concept and circumscription of these species. Why it is not a appropriate generic name for our plants, is explained under C. versicolor. Other generic name used for the taxa under this group is Microstylis Nutt. (nom.cons.). This generic name also applies to the New World series, which is typified by Microstylis ophioglossoides Willd., and Willdenow might be correct considering it a close ally of Geodorum Jackson. (1810). Lindley (1827) published a new generic name under Dienia congesta Lindl. based on Malaxis latifolia J.E. Sm. However, the earliest available generic name for this generic concept happens to be Corymborchis Du Petit Thuars. applied to Himalayan species going under Malaxis and Microstylis (Sensu lato). I propose to restore this generic name for our Indian orchids ".
Another important explanation at the end of the description of C. versicolor is as follows: pg 30 : "The Malaxis rheedii Sw. was revived by Nair & Ansari (1981) . However, Swartz in original publication (1778) has cited Epidendrum resupinatum G. Forst., reducing his new name to illegitimate status . Seidenfaden (Bot. Tidsskr. 73: 97, 1978) excluded Forster's synonym and lectotypified Swartz's name on Rheede's figure. This practice is against the rules of the ICBN. Any name including the indication of type of different species or even the inclusion of the name of different species renders the new name illegitimate, irrespective of its own type. Similarly, Swartz's generic name also must be typified by Epidendrum resupinatum Forst. Secondly , Seidenfaden was wrong in selecting Rheede's figure as type. because Swartz had proposed the name for Occidental plant which he has applied to Oriental species".
I hope the above resolves the confusion. Sir just a few days back Dr. Almeida had mentioned to me that it can take any number of years for the Kew index and other data indexes to update the new combinations.
I am also attaching scanned image of a line drawing and a picture of C. versicolor from the flora.
regards,Rashida.
On Thu, Aug 19, 2010 at 5:49 PM, Pankaj Kumar wrote:
I have met Dr. Almeida personally and I respect him undoubtedly and I also know some of his students very well. My intention of saying was just to see what he has done with Malaxis in his book. My personal view says, they can never be placed in Corymborkis.....it is totally out of my head!! He may have made a new combination...
Neither do I doubt credibility of Dr. Neil. What he said was based on a proper reference, so has is justified himself.
Sameer Surve, Swapna, Aparna, Page, if you are reading this, then get me xerox of orchidaceae. I would really like to see. The book is not available in Dehradun.
RegardsPankaj
On Thu, Aug 19, 2010 at 4:34 PM, Gurcharan Singh
wrote:
Neil jiIt may solve the issue if you could have the paragraph on nomenclature (with authority) of this species forwarded on the group.
--
Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297 Mob: 9810359089
http://people.du.ac.in/~singhg45/
On Thu, Aug 19, 2010 at 4:09 PM, Neil Soares
wrote:
Hi Prof. Singh,
I own all the voumes of 'Flora of Maharashtra' but haven't had time, neither do I have any material to work on.
Regards,
Neil Soares.
--- On Thu, 8/19/10, Gurcharan Singh
wrote:
From: Gurcharan Singh
Subject: Re: Re: [efloraofindia:44808] Re: one more ground orchid for id from Amboli
To: "dinesh kumar agrawala"