Z. Naturforsch. 55c, 5 2 8 -5 3 3 (2000); received April 5/April 20. 2000 Pelargonium Species, Umckaloabo, Coumarins, Oxygenation Pattern The coumarin patterns of Pelargonium sidoides DC. and Pelargonium reniforme CURT., forming the origin of the herbal medicine “umckaloabo”, were analysed and compared for therapeutic equivalence. For both species, members of triand tetraoxygenated coumarins al...

Geraniaceae are known for their unusual plastid genomes (plastomes), with the genus Pelargonium being most conspicuous with regard to plastome size and gene organization as judged by the sequenced plastomes of P. x hortorum and P. alternans. However, the hybrid origin of P. x hortorum and the uncertain phylogenetic position of P. alternans obscure the events that led to these extraordinary plas...

Investigation of the benzopyranones from the roots of PELARGONIUM SIDOIDES led to the identification of 15 benzopyranones, among them the novel compounds 12 and 14. Furthermore, benzopyranones 4 and 15 were detected in PELARGONIUM SIDOIDES for the first time. Structure determinations were performed by one- and two-dimensional NMR spectroscopy. An HPLC system for the discrimination of these benz...

THE TITLE COMPOUND [SYSTEMATIC NAME: (9-meth-oxy-3,5-dimethyl-5,6-dihydro-naphtho-[2,3-b]furan-4-yl)methyl 2-meth-yl-but-2-enoate], C(21)H(24)O(4), was isolated from matarique, or Psacalium peltatum (Kunth). The structure is almost planar. The angelo-yloxy group makes an angle of 62.08 (2)° with the furan-oeremophilane skeleton. The carbonyl O atom is disordered between two positions with a 76:...