All the plants in bloom found in the study area were collected monthly, exsiccates
were subsequently produced and sent to the Brazilian Enterprise for Agricultural Research --Eastern Amazon (Empresa Brasileira de Pequisa Agropecuaria-EMBRAPA Amazonia Oriental) for identification at the species level, and vouchers were stored in the Herbarium of the Federal University of Maranhao (MAR).
The morphologic analyses were based on specimens obtained in Paraiba during the study, complemented by examination of exsiccates
deposited in the Herbarium Jaime Coelho de Moraes (EAN) and Herbarium Lauro Pires Xavier (JPB), both in the State of Paraiba, and by consulting types and original descriptions.
of the studied plants were deposited and registered in the Universidade Estadual de Santa Cruz (UESC) Herbarium: 19126 (Mexican poppy), 19128 (pink morning glory), 19127 (amorimia), 18835 (castor bean) and 18821 (clove tree).
The species was identified and the exsiccates
deposited in the Herbarium of Campinas State University, under the registration number 23023.
were deposited in the EAC Herbarium (Prisco Bezerra), at the Universidade Federal do Ceara under the numbers 46719, 46715, and 46716, respectively.
In this study, the following steps were addressed, respectively: a) semi-structured interviews (open and closed questions) and collection of plants used in traditional medicine by the residents of Mandaguacu municipality (State of Parana) (we tried to collect species at flowering to facilitate the identification); b) drying of plants and preparation of exsiccates
at the Unit for Higher Education Inga (Uninga); c) identification of herborized species through taxonomic keys of vegetal families and by comparison with exsiccates
from the Herbarium of Biology Department from State University of Maringa; d) survey of scientific information available about these species, and comparison with information about their popular use, according to reported by the respondents.
were deposited in the Herbarium of the Botanic Department at Federal University of Santa Maria (UFSM) as HDFI 136 code (NUNES et al., 2007).
that were representative of the material studied were deposited in the Myxomycete collection of the UFP Herbarium.