@article {413,
	title = {Rhodora; Journal of the New England Botanical Club. Cambridge, MA},
	volume = {59(702)},
	year = {1957},
	author = {H. Rock}
}
@article {162,
	title = {Contr. Inst. Geobiol.},
	volume = {8},
	year = {1957},
	author = {Teodoro}
}
