Citrandarin US 852
Poncirus trifoliata x Citrus reticulata US 852
Poncirus crossed with a Changsha mandarin makes this one of the hardiest edible Citrus going.
Not as sweet as a normal mandarin the fruits however have little of the pungent, unpleasant poncirus flavour that is often found in it's hybrids.
Along with US 119 this looks like it has great promise.