Is a "cultivar" not defined as a named clonal form of a plant?? this is what I take it to mean and I use the word often. I describe Tomato "Shirley F1" as a *seed strain*. I describe "Iris aucheri Snow Princess" as a cultivar, I also describe "Iris aucheri Snow White" as a cultivar. I would describe white seedlings of Iris aucheri, including these, as "Iris aucheri alba." I would describe a single random white seedling of Iris aucheri as "a clone of Iris aucheri alba". It could only become a "cultivar" after being named and described for features which would make it distinct from other from other seedlings (clones) of "Iris aucheri alba" Is my use of these terms incorrect? Peter (UK)