Of course you could simply use 'Polish notation' or the more common 'reverse Polish notation', mathematical notational systems without parentheses which, nonetheless, permit expression of all possible relationships. But people who do use it are actually annoying to other geeks. -----Original Message----- From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of DAVID ROSS Sent: Wednesday, May 07, 2014 11:43 AM To: Pacific Bulb Society Subject: Re: [pbs] Help with Nomenclature Dear Dennis Many thanks Kind regards David and Penny 01363 866401 ________________________________ From: Dennis Kramb <dkramb@badbear.com> To: Pacific Bulb Society <pbs@lists.ibiblio.org> Sent: Tuesday, May 6, 2014 6:35 PM Subject: Re: [pbs] Help with Nomenclature I agree with Diane, that you have to start embedding things in parentheses. For my personal records I don't worry about that. I do what makes sense to me. I get confused with too many "x"s floating around. If I cross "Iris x versilaev" with "Iris ensata", I merely record it as: "versilaev x versata" Dennis in Cincinnati