What a wealth of information Sue! Thanks so much! Where were you able to access that 1903 Gardeners Chronicle?
If height is the only distinguishing characteristic, and I go by the Grace Gardens 40" height deesciption, that would indicate it is the species.
Mine was closer to 36" in its first year, and it's in partial shade. Perhaps it is the cultivar 'Baroni', but all things considered, more likely the species. Would you agree?
I suspect some of the early cultivars are so similar it is hard to distinguish them.
