@article {5110,
	title = {Contributions to the knowledge of the Annonaceae in northern South America},
	journal = {Arkiv f{\"o}r Botanik, n.s.Arkiv f{\"o}r Botanik, n.s.},
	volume = {1},
	number = {6},
	year = {1950},
	note = {007, 010, 038, 041, 055, 080, 152, 161, 167, 196, 206},
	pages = {329-347; pl. 1-7},
	author = {Fries, R. E.}
}
@article {5111,
	title = {Three new species of Annonaceae from northern South America},
	journal = {Arkiv f{\"o}r Botanik, n.s.Arkiv f{\"o}r Botanik, n.s.},
	volume = {1},
	number = {11},
	year = {1950},
	note = {010, 080, 206},
	pages = {445-451},
	author = {Fries, R. E.}
}
