“…Many aquatic macrophytes show great phenotypic plasticity (Grace, 1993). Due to this plasticity, trade-offs between different organs and functions have been reported in several aquatic plants (Coelho, Deboni, & Lopes, 2005a;Demetrio, Barbosa, & Coelho, 2014;Li, Barrett, Song, & Chen, 2019;Thompson & Eckert, 2004). Among the species of aquatic ferns belonging to the family Salviniaceae, the species Salvinia auriculata exhibits great morphological plasticity under densely crowded conditions (Coelho, Lopes, & Sperber, 2000) and under shade conditions (Julien, Center, & Tipping, 2002;Julien, Hill, & Tipping, 2009;Room, 1994), and exhibits a trade-off between bud and sori production (Medeiros et al, 2018).…”