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Introductions to both Fossil and Recent Plant Taxa /
Gnetophyta
Annette Becker et al. (2002): Ancestry and diversity of BEL1-like homeobox genes revealed by gymnosperm (Gnetum gnemon) homologs. PDF file, Dev Genes Evol, 12: 452-457. See also here (in German).
! dmoz, the Open Directory Project:
Science: Biology: Flora and Fauna: Plantae:
Gnetophyta.
See also:
Earth Sciences: Paleontology: Paleobotany:
Taxa.
! Christopher J. Earle (server space has been provided by the Department of Botany, Rheinische Friedrich-Wilhelms-Universität Bonn, Germany): The Gymnosperm Database. Currently the database provides basic information for all species and higher-ranked taxa of the gymnosperms, i.e., conifers, cycads, and their allies. You may navigate from the Gymnosperm Database Site Map Gnetales.
! W.E. Friedman (1996): Introduction to biology and evolution of the Gnetales. PDF file, International Journal of Plant Sciences 157(6) (supplement): 1-2.
Else Marie Friis et al. (2007): Phase-contrast X-ray microtomography links Cretaceous seeds with Gnetales and Bennettitales. Abstract, Nature, 450: 549-552.
Google: Science > Biology > Flora and Fauna > Plantae > Gnetophyta.
Thorsten Hebben, Department of Biological Sciences, University of Alberta, Edmonton, Canada: Gnetophyta: An Enigmatic Group of Seed Plants. A slideshow.
Department of Botany, University of Wisconsin, Madison: Plant Systematics Collection. This web site provides structured access to a teaching collection of plant images representing over 250 families and 1000 genera of vascular plants. Go to: Phylum Gnetophyta (Vessel-bearing gymnosperms). Ephedra, Gnetum, Welwitschia.
Dan Nickrent and Karen Renzaglia, Department of Plant Biology Southern Illinois University at Carbondale: Land Plants Online, Phylum Gnetophyta. The Gnetophytes, list of families and genera.
Catarina Rydin, Department of Palaeobotany, Swedish Museum of Natural History, Stockholm: Phylogeny and evolution of Gnetales. A research project.
! R.A. Stockey,
Department of Biological Sciences,
University of Alberta:
PALEOBIOLOGY OF ANGIOSPERM ORIGINS.
This course explores recent advancements toward
resolution of the evolutionary origin of flowering plants. Go to:
Presentation on Gnetophyta:
An Enigmatic Group of Seed Plants
(Author: Thorsten Hebben).
! Wikipedia (a free-content encyclopedia):
Spermatophyte. Go to:
The Gnetales.
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