1. A case of asyndesis in Picea abies.;Andersson;Hereditas,1947
2. Chromosomes and phylogeny in some genera of the Crepidinae;Babcock;Cytologia, Fujii Jubil.,1937
3. Does the fertility of intraspecific hybrids in autogamous species improve in consequence of a heterotic effect?;Bernström;Hereditas,1950
4. Cytogenetic studies on relationships between annual species of Lamium.;Bernström;Hereditas,1955