Thank you, Poisondartfrog, for finding that error. The synonyms of T. erecta are T. patula f. patula and T. patula var. patula. T. patula is still a provisionally accepted name and was added as a synonym in error. I've removed it from the T. erecta entry and I've created a T. patula entry. I'll now correct all of the patula cultivars that were changed to T. erecta. After I'm through and after I'm sure you've seen my replies, I'll delete your comment and my replies because they won't make much sense after the entries have been corrected.