Or you give it a cultivar name, e.g. *Iris* 'Cultivar' and register it! On 6 May 2014 16:26, Diane Whitehead <voltaire@islandnet.com> wrote: > You start getting creative with various parentheses: > > Iris [ ( a x b ) x ( b x d ) ] x ( c x a ) > > as an example. > > Diane Whitehead > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ > -- Ralph Carpenter 2 & 3 Stone Cottages Chilmington Green Great Chart Ashford Kent TN23 3DW 01233 637567