Petiole Twisting in the Crowns of Psychotria Limonensis: Implications for Light Interception and Daily Carbon GainNo. 122–29
Galvez, David and Pearcy, Robert W. 2003. "Petiole Twisting in the Crowns of Psychotria Limonensis: Implications for Light Interception and Daily Carbon Gain." Oecologia, (1) 22–29.