Seedless citrange

[Citradia]

I’m wondering if these two citranges got mixed up or switched names: the Benton looks bright orange and has seeds, but the citradia is yellow and seedless. The citradia that the grower showed me last year was bright orange, and I’m used to thinking citrus aurantium as being orange and the seeds in it being used for pectin. Does Benton citrange tend to be seedless and yellow, or are citradia fruit usually seedless?

[Citradia]

This is the citradia fruit from same tree last year.

[Millet]

Benton is frequently used as a rootstock for lemons.  One of the requirements for a commercial rootstock variety is that the fruit produce adequate amount of seeds.

[Citradia]

Maybe the yellow fruit is just small and unhealthy so it didn’t make seeds.

[usirius]

My Citrandarin Poncirus x Changsha Mandarin HRS899 Seeedling (means F1-Generation of HRS 899) do not create seeds on unpollinated fruits. Those fruits ware growing smaller than fruits of pollinated flowers which contains seeds.