Deuterocohnia longipetala

This is the 1st time I ever had any seed from any Deuterocohnia.
Do you need two different plants to get seed?

 I wonder what it is crossed with.

This plant is not by any other Deuterocohnia but Dyckia's are all around it, so could it be pollinated by a dyckia?

I do have a Deuterocohnia about 20 feet away on the other side a 6 ft high fence.

This is it.

It has been in flower for a looooong time this summer.