[1] Univ Fed Minas Gerais, Dept Bot, BR-31270901 Belo Horizonte, MG, Brazil
[2] Univ Campinas UNICAMP, Inst Biol, Dept Plant Biol, CP6109, Campinas, SP, Brazil
[3] UAB, CSIC, CREAF, Global Ecol Unit, E-08193 Bellaterra, Catalonia, Spain
[4] CREAF, E-08193 Cerdanyola Del Valles, Catalonia, Spain