"Sulfur" is the correct scientific spelling in English for that chemical element. The correct spelling for the cultivar name is however it was originally registered or published. Jim Shields At 09:08 AM 7/5/2010 +0100, you wrote: >Jim McKenney wrote > > ><Patrick Synge in Collins Guide to Bulbs (early 1960S), attributed the >name to van Tubergen and uses the spelling "sulphur". > > > >Sulphur is the normal English spelling of the word I doubt that that the >spelling "sulfur" is used anywhere else other than USA. > > >David Nicholson >in Devon, UK. Zone 9b James E. Shields, PhD Tel. ++1-317-896-3925 17808 Grassy Branch Rd. Cell ++1-317-506-4726 Westfield, IN 46074 <jshields@indy.net> USA