@article {5662,
	title = {Pollen Ultrastructure and Its Systematic Relevance in Bocageopsis, Ephedranthus, Malmea, and Unonopsis (Annonaceae)},
	journal = {Plant Systematics and EvolutionPlant Systematics and Evolution},
	volume = {150},
	number = {3-4},
	year = {1985},
	pages = {165-177},
	author = {Waha, M.}
}
@article {5663,
	title = {Different Origins of Fragile Exines within the Annonaceae},
	journal = {Plant Systematics and EvolutionPlant Systematics and Evolution},
	volume = {158},
	number = {1},
	year = {1987},
	pages = {23-27},
	author = {Waha, M.}
}
@article {5664,
	title = {Aperture Types within Sapranthus and Polyalthia (Annonaceae)},
	journal = {Plant Systematics and EvolutionPlant Systematics and Evolution},
	volume = {161},
	number = {3-4},
	year = {1988},
	pages = {135-146},
	author = {Waha, M. and Hesse, M.}
}
@article {5665,
	title = {Pollen Evolution and Systematics in Annonaceae with Special Reference to the Disulcate Australian Endemic Genera},
	journal = {Plant Systematics and EvolutionPlant Systematics and Evolution},
	volume = {161},
	number = {1-2},
	year = {1988},
	pages = {1-12},
	author = {Waha, M. and Morawetz, W.}
}
@inbook {5250,
	title = {Pollen of palaeo- and neotropical Annonaceae: definition of the aperture by morphological and functional characters},
	booktitle = {Pollen and spores: form and function},
	year = {1986},
	pages = {375{\textendash}388},
	publisher = {Academic Press.},
	organization = {Academic Press.},
	address = {London},
	author = {Le Thomas, A and Morawetz, W. and Waha, M.},
	editor = {Blackmore, S. and Ferguson, I.K.}
}
@inbook {93,
	title = {Pollen of palaeo- and neotropical Annonaceae: definition of the aperture by morphological and functional characters},
	booktitle = {Pollen and spores: form and function},
	year = {1986},
	pages = {375{\textendash}388},
	publisher = {Academic Press.},
	organization = {Academic Press.},
	address = {London},
	author = {Le Thomas, A. and Morawetz, W. and Waha, M.},
	editor = {Blackmore, S. and Ferguson, I.K.}
}
