transitional-combinational theory

Gurcharan Singh singhg at SATYAM.NET.IN
Wed Mar 31 21:50:09 CST 2004


BlankStuessy in Taxon (Feb, 2004) proposes transitional-combinational theory
of origin of angiosperms. He believes that it took 100 mya to develop three
characteristics of angiosperms: carpels, double fertilization and finally
flowers. Do we have enough record of this long transition?

Gurcharan

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Dr. Gurcharan Singh
Department of Botany                  Res. 932 Anand Kunj
S. G. T. B. Khalsa College                    Vikas Puri
University of Delhi                                 New Nelhi-110018
Delhi-110007, INDIA                            INDIA
Phone: 27666469                                Phone: 25531534,
9810359089
                       mail: singhg at satyam.net.in
                               chani at sify.com
                               singhg45 at yahoo.co.uk

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