@article {1973,
	title = {Morphological characterization of seeds and seedlings of seven weed species of Convolvulaceae occurring in agricultural seeds in Brazil},
	journal = {Iheringia: Botanica},
	volume = {41},
	year = {1991},
	pages = {83-99},
	keywords = {America, Aniseia, Ipomoea, Jacquemontia, Merremia, morphology, seedling morphology},
	author = {Groth, D.}
}
