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World of CitrusWorld of CitrusRuby Blood Orange
University of California, Riverside — Citrus Variety Collection
https://citrusvariety.ucr.edu/crc3827 (opens in a new tab)
Accessed
Citrus ID, Edition 2 · October 2011
https://idtools.org/citrus_id/index.cfm?entityID=8789&packageID=1179 (opens in a new tab)
Secondary cultivar page. It attributes origin and traditional horticultural description to Hodgson (1967), including approximate Mediterranean-to-Florida introduction around 1880 and variable blood color. Separately attributes 1999 industry release and St. Cloud budwood provenance to Chiefland Budwood Facility (2010), specifically clone DPI-441-10; do not present this as Ruby's original cultivar release or infer a breeder. Taxonomy section reproduces differing cited treatments rather than molecular confirmation. Page morphology table and Hodgson description are source-specific; color is favorable-condition and region dependent.
Accessed
George W. Garcelon (Part I); B. M. Lelong (Part II) · Sacramento: A. J. Johnston, Superintendent of State Printing · 1891
https://archive.org/details/citrusfruits00cali (opens in a new tab)
Part II by B. M. Lelong; Ruby orange account at printed p. 20 (PDF p. 24). The page separately quotes USDA Bulletin No. 1 (1887) and reports Lelong's July 21, 1891 observation of E. W. Holmes's Riverside specimens. Historical report; not accession-wide measurement.
Accessed