Acylated Flavonoid Glycosides are the Main Pigments that Determine the Flower Colour of the Brazilian Native Tree Tibouchina pulchra (Cham.) Cogn. - Rezende, Fernanda Mendes; Ferreira, Marcelo J. P; Clausen, Mads Hartving; Rossi, Magdalena; Furlan, Cláudia Maria (Molecules, 2019)