Umatilla Tangor

Umatilla is a tangor made in spring 1911 at Eustis, Florida. The original USDA description names Satsuma × Ruby orange as its parents; Hodgson later identifies the Satsuma as Owari. It was named and described in 1931, taking its name from Umatilla in Lake County.^⁠[1]⁠[3]

Historical accounts describe large to medium-large, broadly flattened fruit with reddish-orange rind, orange flesh and tender, very juicy pulp. The 1931 report describes variable seediness and maturity in late February through April; Hodgson’s later account records monoembryonic seeds with green cotyledons.^⁠[1]⁠[3]

The USDA description characterizes the tree as slow-growing, spreading and productive, resembling Satsuma. IDtools separately describes a compact or dense crown that is not weeping.^⁠[1]⁠[3]

In a 2002 laboratory study, Wu and Mooney produced autotetraploid Umatilla plants from embryogenic callus treated with colchicine. The publisher abstract reports ploidy checks by flow cytometry and chromosome squashes. These experimental regenerants do not establish the ploidy or field performance of ordinary Umatilla trees.^⁠[4]

Panzarella Citrus describes Umatilla as a Satsuma × Ruby Orange cross and reports that a monoembryonic Umatilla flower was used as the seed parent of Raspberry Tangor.^⁠[2]