On the pollen morphology in Lomatogonium A. Br. von Nilsson, Siwert

Atlas of airborne pollen grains and spores in Northern Europe von Nilsson, Siwert, Praglowski, Joseph, Nilsson, Lennart 1922-2017

Menyanthaceae Dum. Taxonomy by Robert Ornduff von Nilsson, Siwert

Pottingeria, its taxonomic position, anatomy and palynology von Shaw, Herbert Kenneth Airy 1902-1985, Cutler, David F. 1939-, Nilsson, Siwert

Pollen morphological studies in the Gentianaceae von Nilsson, Siwert

Pollen morphological contributions to the taxonomy of Lisianthus L. S. Lat. (Gentianaceae) von Nilsson, Siwert

Pollen morphology of saprophytic taxa in the Gentianaceae von Nilsson, Siwert, Skvarla, John J.

An introduction to a Scandinavian pollen flora von Erdtman, G. 1897-1973, Berglund, Björn, Praglowski, Joseph, Nilsson, Siwert

Atlas of airborne fungal spores in Europe

Weitere Verfasser: “… Nilsson, Siwert …”

Atlas of airborne fungal spores in Europe

Weitere Verfasser: “… Nilsson, Siwert …”