On Tue, Sep 29, 2009 at 12:11 PM, Dr. Pankaj Kumar <[email protected]>wrote:
> > Respected Gurcharan Sir, > > Nervilia crociformis is accepted by > > 1. Govaerts, R. (2003). World Checklist of Monocotyledons Database in > ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, > Kew. > 2. Misra, S. (2004). Orchids of Orissa: 1-774. Bishen Singh Mahendra > Pal Singh. > 3. Demissew, S., Cribb, P. & Rasmussen, F. (2004). Field Guide to > Ethiopian Orchids: 1-300. The Board of Trustees of the Royal Botanic > Gardens, Kew. > 4. Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) > (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers. > 5. Lucksom, S.Z. (2007). The orchids of Sikkim and North East > Himalaya: 1-984. S.Z.Lucks0m, India. > 6. Lin. W.M., Hsu, T.C. & Lin, T.P. (2007). Newly discovered native > orchids of Taiwan. Taiwania 52: 281-286. > 7. Szlachetko, D. & Kowalkoska, A. (2007). Contributions to the orchid > flora of Guinea, West Africa. Polish Botanical Studies 25: 1-259. > 8. Szlachetko, D.L. (2008). Orchidaceae of Ivory Coast. Ruizia 20: > 1-396. > > Nervilia prainiana is accepted by > 1. OFFCOURSE ME!! > 2. Deva, S. and H. B. Naithani. 1986. The Orchid Flora of North West > Himalayas. Print and Media Associate, New Delhi. > 3. Seidenfaden, G. 1978. Orchid genera in Thailand VI: Neottioideae > Lindl. Dansk Botanisk Arkiv. 32 (2): 1- 195. > 4. Pearce, N. R. and P. J. Cribb. 2002. The Orchids of Bhutan. Royal > Botanic Gardens, Edinburgh and The Royal Government of Bhutan. > > When I met Dr. Misra, his exlaination was, I HAVE SEEN MORE SPECIMENS > THAN YOU PANKAJ!!!, > LUCKSOM HAS JUST COPIED WHAT OTHERS HAVE WRITTEN, I AM A BIG FAN OF > LATE DR GUNNAR SEIDENFADEN AND DR PHILLIP CRIBB, SO I TREAT THEM AS > SEPARATE SPECIES. On the basis of description, in N. prainiana leaves > are more orbicular whereas it is polygonal in N. crociformis and lip > has no sidelobes in N. crociformis, whereas it is distinct in N. > prainiana. > > Regards > Pankaj > > > > Thanks a lot Pankaj ji for this nice information That reminds me of an similar incident we had with Prof. Mehra from Chandigarh nearly 40 years back. I hope you must heard about famous work of Babcock on Genus Crepis of Asteraceae. He merged several genera with Crepis including Pterotheca on the basis of x=5. Pterotheca falconeri grows in Himalayas, and subtropical North India. Prof Mehra advocated separate identify for Pterotheca on the basis of x=3 in the genus. We worked with original material from Himalayas, and every time found n=5 in Pterotheca falconeri. When we reported this to Prof. Mehra and sought his justification for his separation, his simple answer was: oh your material must be having B chromosomes. That happens. -- Dr. Gurcharan Singh Associate Professor, Department of Botany, SGTB Khalsa College University of Delhi, Delhi-110007 Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018 Phone: 011025518297; Mobile: 9810359089 http://people.du.ac.in/~singhg45/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "indiantreepix" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.co.in/group/indiantreepix?hl=en -~----------~----~----~----~------~----~------~--~---
