1. Laboratory of Floral and Reproductive Biology, Botany Department, Federal University of Pernambuco Recife Brazil
2. Academic Centre of Vitória, Federal University of Pernambuco, Vitória de Santo Antão Brazil
3. Biology Department, Botanical Division, Rural Federal University of Pernambuco Recife Brazil
4. Laboratory of Chemistry Ecology, Fundamental Chemistry Department, Federal University of Pernambuco Recife Brazil
5. Laboratory of Ecology, University of Pernambuco, Campus Petrolina Petrolina Brazil