Kathleen, these double forms and two flowered "stems" occur from time to time but so far are not stable. Meaning , the same plant keeps on producing normal flowers and these "sports" never appear again. Wish they could be permanent. As you know, uniflorum has strong dark lines along the BACK of the tepals. I saw once at a Show flowers of a plant that had those strong lines both at the FRONT and the back, it was really striking, not sure if attractive, I imagine it will take time to get used to it. The lady was very generous and told me to go and get the plant but when I did a couple of days afterwards they had mown the lawn and the front of the small border wheere ipheions had obviously seeded all over. As a result all trimmed leaves kooked the sdameand it was impossible to collect all those plants. But, at least I know it exists.