History

Cross Made

Webber's account, reissued by USDA in 1909, describes Morton (No. 771) as a seedling from the same hybrid fruit as Willits (No. 777). It attributes pollination of the trifoliate-orange seed parent with sweet-orange pollen to Walter T. Swingle at G. H. Norton's grove in Eustis. Cooper, Reece, and Furr (1962) place Morton in the 1897 series and identify Ruby sweet orange as the pollen cultivar. These are attributed historical accounts.

• Walter T. SwingleBreeder

  Webber's account, reissued in 1909, explicitly attributes pollination of the hybrid fruit that produced Morton No. 771 to Walter T. Swingle at G. H. Norton's grove in Eustis. The 1962 retrospective places the series in 1897.

Sources: ⁠[17]⁠[19]

Other

The Riverside citrus collection received Morton as budwood from Walter T. Swingle of the USDA in June 1924. This accession became CRC 1463 / PI 539811.

• Walter T. SwingleOther

  Provided Morton budwood to the Riverside collection in June 1924.

• UC Riverside Citrus Experiment StationOther

  UCR CRC 1463 records receipt of Morton budwood from Walter T. Swingle of the USDA in June 1924 (PI 539811). This note describes the accession receipt.

Sources: ⁠[1]

Other

The USDA pamphlet reissued on 30 January 1909 says the citrange had been named Morton, with the Secretary of Agriculture's consent, in honor of J. Sterling Morton. It identifies itself as a reprint, with slight changes, of Herbert J. Webber's 1905 Yearbook account. This documents the naming account without establishing a separate formal naming date.

Sources: ⁠[17]