Planta Medica, Table of Contents Planta Med 1981; 42(6): 141DOI: 10.1055/s-2007-971613 Posters © Hippokrates Verlag StuttgartTwo New Orange Coloured Alkaloids from Pycnarrhena longifolia T. van Beek, R. Verpoorte, A. Baerheim Svendsen Dep. of Pharmacognosy, State University of Leiden Recommend Article Abstract PDF Download Buy Article PDF (22 kb)