Journal: Proceedings of the National Academy of Sciences

Conifer species adapt to low-rainfall climates by following one of two divergent pathways

doi/10.1073/pnas.1407930111

Water stress is one of the primary selective forces in plant evolution. There are characters often cited as adaptations to water stress, but links between the function of these traits and adaptation to drying climates are tenuous. Here…

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Fossil evidence for Cretaceous escalation in angiosperm leaf vein evolution

Feild, T. S., T. J. Brodribb, A. Iglesias, D. S. Chatelet, A. Baresch, G. R. Upchurch, Jr., B. Gomez, B. A. R. Mohr, C. Coiffard, J. Kvacek, and C. Jaramillo. 2011. Fossil evidence for Cretaceous escalation in angiosperm leaf vein evolution. Proceedings of the National Academy of Sciences 108 (20): 8363-8366.

The flowering plants that dominate modern vegetation possess leaf gas exchange potentials that far exceed those of all other living or extinct plants. The great divide in maximal ability to exchange CO2 for water between leaves of nonangiosperms…

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