%0 Journal Article %T Lectotypification of seven names in Amaranthus %A Bay¨®n %A N¨¦stor D. %A Freire %A Susana E. %J Bolet£¿-n de la Sociedad Argentina de Bot£¿£¿nica %D 2011 %I Scientific Electronic Library Online %X typification is provided for seven names of american and african species of amaranthus as a nomenclatural contribution to a forthcoming taxonomic revision of this genus. %K amaranthus %K lectotypification %K nomenclature. %U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S1851-23722011000100015&lng=en&nrm=iso&tlng=en