TY  - BOOK
AU  - Erdtman G
TI  - Pollen and spore morphology/plant taxonomy: gymnospermae, pteridophyta, Bryophyta
U1  - 571.842 
PY  - 1957///
CY  - Stockholm
PB  - Almqvist & Wiksell
KW  - Plant spores
KW  - Pollen-morphology
KW  - Polynotaxonomy
ER  -