Named the selection Raspberry Tangor after tasting its red-fleshed, raspberry-flavored fruit.
The Panzarella Citrus article says that after the grafted seedling fruited, Lewis Walden tasted the fruit and named it Raspberry Tangor for its red interior and slight raspberry-like flavor. The first-person narrator says buds were later taken from their original tree and the variety tested in several locations. The article gives no date, event location, or byline.
World of Citrus