Rotuma

Synonyms

Rotuma Island, Rotuna (sec. Cottin 2002)

Cultivar or taxon

Citrus x aurantium L., pro sp. [Sweet Orange Group] (sensu Mabberley 1997, Bayer et al. 2009); Citrus sinensis (L.) Osbeck (sensu Swingle and Reece 1967; sensu Tanaka sec. Cottin 2002)

Description

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 narrow, adjoining the blade. Leaflets one, margin bluntly toothed, shade leaflet blades flat or weakly conduplicate, sun leaflet blades weakly or strongly conduplicate. Scent of crushed leaflets sweetly orange-like. Fruit as broad as long or longer than broad; rind yellow (7-10), yellow-orange (11), orange (12), or red-orange (13); rind texture slightly rough (4-5); firmness leathery; navel absent; flesh orange; taste acidic-sweet.

References

Bayer, R.J., D.J. Mabberley, C. Morton, C.H. Miller, I.K. Sharma, B.E. Pfeil, S. Rich, R. Hitchcock, and S. Sykes. 2009. A molecular phylogeny of the orange subfamily (Rutaceae: Aurantioideae) using nine cpDNA sequences. American Journal of Botany 96: 668–685.

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.

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.

Resources

Search for this cultivar in NCBI Entrez

           Habit (Rotuma Island, Riverside, CA)

Habit (Rotuma Island, Riverside, CA)

             Second - third year twig (Rotuma Island, Riverside, CA)

Second - third year twig (Rotuma Island, Riverside, CA)

             Second - third year twig (Rotuma Island, Riverside, CA)

Second - third year twig (Rotuma Island, Riverside, CA)

             Second - third year twig (Rotuma Island, Riverside, CA)

Second - third year twig (Rotuma Island, Riverside, CA)

             Petiole (Rotuma Island, Riverside, CA)

Petiole (Rotuma Island, Riverside, CA)

           Unifoliolate leaf (Rotuma Island, Riverside, CA)

Unifoliolate leaf (Rotuma Island, Riverside, CA)

             Unifoliolate leaf (Rotuma Island, Riverside, CA)

Unifoliolate leaf (Rotuma Island, Riverside, CA)

           Sun leaves (Rotuma Island, Riverside, CA)

Sun leaves (Rotuma Island, Riverside, CA)

           Sun leaves (Rotuma Island, Riverside, CA)

Sun leaves (Rotuma Island, Riverside, CA)

           Sun leaves (Rotuma Island, Riverside, CA)

Sun leaves (Rotuma Island, Riverside, CA)

           Fruit (Rotuma Island, Riverside, CA)

Fruit (Rotuma Island, Riverside, CA)

           Fruit (Rotuma Island, Riverside, CA)

Fruit (Rotuma Island, Riverside, CA)

           Fruit (Rotuma Island, Riverside, CA)

Fruit (Rotuma Island, Riverside, CA)

           Fruit cross-section (Rotuma Island, Riverside, CA)

Fruit cross-section (Rotuma Island, Riverside, CA)