Media type: E-Article Title: Floral quartets Contributor: Theißen, Günter; Saedler, Heinz Published: Springer Science and Business Media LLC, 2001 Published in: Nature, 409 (2001) 6819, Seite 469-471 Language: English DOI: 10.1038/35054172 ISSN: 0028-0836; 1476-4687 Origination: Footnote: