USDA Circular No. 181 describes a generic Satsuma × Ruby orange cross. The IDtools entry's Hodgson (1967) additional note calls Umatilla an Owari Satsuma–Ruby blood orange hybrid; the seed-parent leaf is therefore ordinary Owari Satsuma, not the more specific Frost Owari selection. These sources do not identify an Owari clone. The Ruby Blood Orange pollen-parent leaf is retained.
Source [3]: https://idtools.org/citrus_id/index.cfm?packageID=1179&entityID=8882
Revision: Replace only the unsupported Frost Owari Satsuma seed-parent leaf with ordinary Owari Satsuma, which Hodgson (1967), quoted in IDtools, names. Preserve the primary Circular's generic Satsuma wording, the Ruby Blood Orange pollen-parent leaf, and the uncertainty that no specific Owari clone is identified.
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