Pereskia and the Origin of the Cactus Life‐Form

  title={Pereskia and the Origin of the Cactus Life‐Form},
  author={E. Edwards and M. Donoghue},
  journal={The American Naturalist},
  pages={777 - 793}
  • E. Edwards, M. Donoghue
  • Published 2006
  • Biology, Medicine
  • The American Naturalist
  • The cactus life-form is cited as an example of a tight relationship between organism form and function: a succulent, long-lived, photosynthetic stem allows cacti to survive long periods of drought while maintaining a positive tissue water status. [...] Key Method We selected seven Pereskia species, representing both clades, and characterized their water relations by measuring a suite of physiological traits in wild populations.Expand Abstract
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