@article {2973,
	title = {Gynoecial pathway for pollen tube growth in the genus Monotropa},
	journal = {Bot. Gaz.},
	volume = {152},
	year = {1991},
	month = {1991///},
	pages = {154 - 163},
	author = {Olson, A. R.}
}
@article {2945,
	title = {Observations on the floral shoots of Monotropa hypopitys (Monotropaceae)},
	journal = {Rhodora},
	volume = {92},
	year = {1990},
	month = {1990///},
	pages = {54 - 56},
	author = {Olson, A. R.}
}
@article {2933,
	title = {Pattern of embryo and endosperm formation in Monotropa hypopitys (Monotropaceae) from North America and western Sweden},
	journal = {Amer. J. Bot.},
	volume = {80},
	year = {1993},
	month = {1993///},
	pages = {839 - 846},
	author = {Olson, A. R.}
}
@article {2938,
	title = {Changes in postfertilization ovules of Monotropa uniflora L. (Monotropaceae)},
	journal = {Amer. J. Bot. (Suppl.)},
	volume = {76},
	year = {1989},
	month = {1989///},
	pages = {49 - 50},
	author = {Olson, A. R.}
}
@article {2871,
	title = {Seed morphology of Monotropa uniflora L. (Ericaceae)},
	journal = {Amer. J. Bot.},
	volume = {67},
	year = {1980},
	month = {1980///},
	pages = {968 - 974},
	author = {Olson, A. R.}
}
@article {2846,
	title = {Postfertilization changes in ovules of Monotropa uniflora L. (Monotropaceae)},
	journal = {Amer. J. Bot.},
	volume = {78},
	year = {1991},
	month = {1991///},
	pages = {99 - 107},
	author = {Olson, A. R.}
}
