None
Citrus x aurantium L., pro sp. [Tangor Group] [=Citrus reticulata Blanco X Citrus x aurantium L., pro sp. [Sweet Orange Group]] (sensu Mabberley 1997, 2004); Citrus reticulata Blanco x Citrus sinensis (L.) Osbeck (sensu Swingle and Reece 1967); Citrus reticulata Blanco (sensu Tanaka sec. Cottin 2002)
Crown compact or dense, not weeping. First-year twig surface glabrous; second- or third-year twig surface striate; thorns absent or not persistent; prickles absent or not persistent. Petiole glabrous, length medium; wings absent, if present, narrow, adjoining the blade. Leaflets one, margin bluntly toothed, shade leaflet blades flat, weakly conduplicate, rarely strongly conduplicate, sun leaflet blades weakly or strongly conduplicate. Scent of crushed leaflets sweetly orange-like, spicy or peppery, mandarin-like, rarely not scented. Fruit broader than long, rind yellow (7-10), yellow-orange (11), or orange (12); rind texture slightly rough (4-5); firmness leathery; navel absent; flesh orange; taste acidic-sweet, sour, or rarely acidless-sweet.
Cottin, R. 2002. Citrus of the World: A citrus directory. Version 2.0. France: SRA INRA-CIRAD.
Mabberley, D.J. 1997. A classification for edible Citrus (Rutaceae). Telopea 7: 167–172.
Mabberley, D.J. 2004. Citrus (Rutaceae): A review of recent advances in etymology, systematics and medical applications. Blumea 49: 481–498.
Swingle, W.T. and P.C. Reece. 1967. The botany of Citrus and its wild relatives. In: Reuther, W., H.J. Webber, and L.D. Batchelor (eds.). The Citrus industry. Ed. 2. Vol. I. University of California, Riverside. http://lib.ucr.edu/agnic/webber/Vol1/Chapter3.html.
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Habit (Riverside, CA) |
Bark (Riverside, CA) |
Second - third year twig (Riverside, CA) |
First year twig (Riverside, CA) |
Sun leaves (Riverside, CA) |
Sun leaves (Riverside, CA) |
Unifoliolate leaf (Riverside, CA) |
Petiole (Riverside, CA) |
Fruit (Riverside, CA) |
Fruit (Riverside, CA) |
Fruit cross-section (Riverside, CA) |