Advanced
searches allow for the restriction of search criteria and thus
very specific results can be obtained. For example to see all
cultivars hybridized by F. Henkel enter 'Henkel' into the Hybridizer
box and click 'submit'. Note That all fields can utilise a wild
card ('*'). For example searching the genus box for 'Nymphaea'
and the cultivar box for 'ex*' will return Nymphaea alba (the
accepted name of Nymphaea exumbonata Rupr.), Nymphaea 'Excalibur'
(the cultivar) and Nymphaea exumbonata Rupr. (the synonym of Nymphaea
alba L.).