Leuenberger, B.E., The South American Opuntia ser. Armatae (=
O. ser. Elatae) (Cactaceae) (With 7 figures and 1 table) 413
Leuenberger, B.E. & Eggli, U., Galenia pubescens (Aizoaceae), new to
the South American flora 441
Cierjacks, A., Hensen, I. & Sánchez Gómez, P., Effects of grazing on
the species composition in a holm oak forest community of
south-eastern Spain (Adenocarpo decorticantis-Quercetum rotundifoliae
Rivas Martinez 1987) (With 5 figures and 2 tables) 447
Bittkau, C. & Kadereit, J.W., Phylogenetic and geographical
relationships in Papaver alpinum L. (Papaveraceae) based on RAPD data
(With 4 figures and 1 table) 463
Weiglin, C., Micromorphological and anatomical investigation of the
leaves of the genus Gethyllis L. (Amaryllidaceae) and prospects for a
further subdivision (With 45 figures and 2 tables) 481