Áskell Löve: Typification of Papaver radicatum - a Nomenclatural Detective Story
Fredrik Nilsson och Erich Goldschmidt: Cytochimeras in Ribes
Hans Tralau: Die spättertiären Fagus-Arten Europas
Hans Runemark: A Revision of Pteris dentata and Related Species
Kai Larsen: Contribution to the Cytology of the Endemic Canarian Element
Sigfrid Arnell: Notes on South African Hepaticae VII
H. Hjelmqvist: The Embryo Sac Development of Some Cotoneaster Species
