Vol. 4 (2020): Pesquisa e Ensino em Ciências Exatas e da Natureza

The cover shows Borreria spinosa Cham. et Schltdl. ex DC., a member of Rubiaceae, which is the fourth largest family of flowering plants (angiosperms) currently in nature. Commonly known as “cabeça de velho” [old man’s head], it is recognized by its globose inflorescence composed of numerous white flowers. This plant occurs in all five regions of Brazil in the phytogeographic domains of the Caatinga, Cerrado and Atlantic Forest. The image also shows part of the Arara Hills in the background, located in the semi-arid region of the state of Paraíba, which has important floristic richness revealed to the scientific community for the first time in the article printed in this edition.