I talked to the Texas budwood bureau today and they are getting me
some shiranui budwood and Akcay Sekeri sweet orange. Yea!http://www.fruitmentor.com/akcay-sekeri-sweet-orange
I have tasted xuegan sweet orange from China, available from Texas budwood bureau. My tree had 3 very good small fruit, very sweet and a rich tasting with no seeds. John Panzarella's tree had larger fruit that weren't so rich tasting. It is a winner IMHO.
I also got to taste 15-150 or lee x orlando this year. It is a real winner as well. Fruit are satsuma sized or slightly larger with a distinctive shape. Flavor was sweet and rich. A friend in Lumberton, TX has about 25 trees in his yard that I propagated. When I retired in 2010 I gave Bob a bunch of trees that had lost labels. He didn't mind as they all were very good selections. His trees are 6+ feet tall now and he had dozens of lee x orlando fruit. It is also supposed to be as cold hardy as satsuma. It is one of those 3/4 grapefruit and 1/4 mandarin hybrids, all of which are great tasting. I also have tasted lee x nova which is a seedless mandarin like fruit as well. Haven't yet tasted lee x robinson but have a tree in a pot. http://www.fruitmentor.com/cat
Lee is clementine x orlando and orlando is duncan x dancy