cybersix said:Pods can develop with other flowers' pollen or just with DLs, then abort if not compatible? I mean, a rose pollen can cause a pollination or it couldn't even start?
Thank you for the second photo; I will compare them closely.
Your question is very interesting. The simple answer is that we do not know what the pollen from a different species would do. I expect that the pollen from a rose would not do anything - no pod would set at all. But the pollen from a Lilium ???? that might be very interesting to try. [Unfortunately there are no Lilium in our garden.]
Daylilies have what I consider to be a primitive self-incompatibility system. It would be more advanced if incompatible pollen (from another daylily or when its own pollen is self-incompatible) would be stopped before a pod was set (no pod set). Daylilies do not work that way. They set a pod (if they are pod-fertile) with incompatible daylily pollen and then abort it. We do not know what causes a daylily to simply set a pod. Although it may be unlikely, a daylily might set a pod just because pollen has landed on the stigma and the pollen grain germinated. It is more likely that pod sets because fertilization occurs.
Perhaps daylilies set pods if pollen from closely related species lands on the stigma - we just do not know....
