Avalos G, Mulkey SS. Photochemical efficiency of adult and young leaves of the neotropical understory shrub <i>Psychotria limonensis</i> (Rubiaceae) in response to changes in the light environment. Rev. Biol. Trop. [Internet]. 2004Dec.1 [cited 2025May8];52(4):839–844. Available from: https://www.revistas.ucr.ac.cr/index.php/rbt/article/view/15498