@article {18404,
	title = {The sporoderm ultrastructure in Persea, Nectandra, Hernandia, Gomortega, and some other lauralean genera},
	journal = {Plant Systematics and Evolution},
	volume = {141},
	year = {1983},
	pages = {299-311},
	author = {Hesse, Michael and Kubitzki, Klaus}
}
