Tosu

Synonyms

None

Cultivar or taxon

Citrus x aurantium L., pro sp. [Sour Orange Group] (sensu Mabberley 2004, Bayer et al. 2009); Citrus aurantium L. (sensu Swingle and Reece 1967 sec. Cottin 2002); Citrus neoaurantium Tanaka (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 straight; prickles absent or not persistent. Petiole glabrous, length short; wings narrow or medium, adjoining the blade. Leaflets one, margin entire or bluntly toothed, shade leaflet blades weakly conduplicate, sun leaflet blades weakly or strongly conduplicate. Scent of crushed leaflets spicy or peppery. Fruit as broad as long or longer than broad; rind green-yellow (6), yellow (7-10), yellow-orange (11), or orange (12); rind texture slightly rough (4-5) or medium rough (6-7); firmness leathery; navel absent; flesh yellow; taste sour.

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. 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.

Resources

Search for this cultivar in NCBI Entrez

Additional information on this cultivar at University of California: Riverside Citrus Variety Collection

           Habit (Winter Haven, FL)

Habit (Winter Haven, FL)

           Habit (Riverside, CA)

Habit (Riverside, CA)

           Bark (Winter Haven, FL)

Bark (Winter Haven, FL)

           Bark (Winter Haven, FL)

Bark (Winter Haven, FL)

             Bark (Winter Haven, FL)

Bark (Winter Haven, FL)

           Bark (Riverside, CA)

Bark (Riverside, CA)

           First year twig (Riverside, CA)

First year twig (Riverside, CA)

             Second - third year twig (Riverside, CA)

Second - third year twig (Riverside, CA)

             Petiole (Riverside, CA)

Petiole (Riverside, CA)

             Unifoliolate leaf (Winter Haven, FL)

Unifoliolate leaf (Winter Haven, FL)

             Unifoliolate leaf (Winter Haven, FL)

Unifoliolate leaf (Winter Haven, FL)

             Unifoliolate leaf (Winter Haven, FL)

Unifoliolate leaf (Winter Haven, FL)

             Margin (Winter Haven, FL)

Margin (Winter Haven, FL)

             Margin (Winter Haven, FL)

Margin (Winter Haven, FL)

             Margin (Winter Haven, FL)

Margin (Winter Haven, FL)

             Margin (Riverside, CA)

Margin (Riverside, CA)

             Shade leaves (Winter Haven, FL)

Shade leaves (Winter Haven, FL)

             Shade leaves (Riverside, CA)

Shade leaves (Riverside, CA)

             Sun leaves (Riverside, CA)

Sun leaves (Riverside, CA)

             Sun leaves (Riverside, CA)

Sun leaves (Riverside, CA)

           Sun leaves (Riverside, CA)

Sun leaves (Riverside, CA)

           Immature fruit (Riverside, CA)

Immature fruit (Riverside, CA)

           Fruit (Winter Haven, FL)

Fruit (Winter Haven, FL)

           Fruit (Winter Haven, FL)

Fruit (Winter Haven, FL)

           Fruit (Riverside, CA)

Fruit (Riverside, CA)

           Fruit (Riverside, CA)

Fruit (Riverside, CA)

           Fruit (Riverside, CA)

Fruit (Riverside, CA)

           Fruit cross-section (Riverside, CA)

Fruit cross-section (Riverside, CA)