@article {2744,
	title = {Pollen morphology of saprophytic taxa in the Gentianaceae},
	journal = {Ann. Missouri Bot. Gard.},
	volume = {56},
	year = {1969},
	month = {1969///},
	pages = {420 - 438},
	author = {Nilsson, S. and Skvarla, J. J.}
}
