Kenneth, Thank you for the contribution. I think it will be best to continue calling this species D imperialis util somebody can prove the difference. Kind greetings -- Lauw de Jager Bulb'Argence South of France (zone 9 (olive trees) emailto: dejager@bulbargence.com Site http://www.bulbargence.com/ Le 6/02/08 19:52, « Kenneth Hixson » <khixson@nu-world.com> a écrit : > lauw >> I recently read a french article on the tree dahlia, which states that D >> imperialis and D arborescens are two sepârate species > > John Bryan's "Bulbs" gives D. arborescens as a synonym > of D. imperialis > > Gareth Rowlands "Gardner's Guide to Growing Dahlias" > doesn't list D. arborescens at all. > > Ken > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://www.pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ >