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Citrus ID


Pamburus (Genus)




Chilocalyx Turcz. (non Klotzsch) (sec. Swingle and Reece 1967)

Cultivar or taxon


Pamburus Swingle (sec. Swingle and Reece 1967, Mabberley 2004, Bayer et al. 2009; sensu Tanaka sec. Cottin 2002)



Crown compact or dense, not weeping. First-year twig surface glabrous; second- or third-year twig surface mottled; thorns straight; prickles absent or not persistent. Petiole glabrous, length short or medium; wings absent. Leaflets one, margin entire or crenate/crenulate, shade leaflet blades flat, sun leaflet blades weakly conduplicate. Scent of crushed leaflets freshly lemon-like. Fruit as broad as long or longer than broad; rind yellow-orange (11), orange (12), or red-orange (13); navel absent.

Swingle and Reece (1967) provided the following additional notes on the genus:

"All the species of [subtribe Triphasiinae] have persistent evergreen leaves but they vary greatly in the different genera: Wenzelia, Monanthocitrus, Merope, and Pamburus have simple leaves with very short, wingless, non-articulated petioles; Triphasia has pinnately trifoliolate or simple leaves; Luvunga has palmately trifoliolate leaves with the leaflets attached by pulvinoid petiolules to a long petiole with a pulvinus at the base; Paramignya has unifoliolate leaves with wingless petioles usually pulvinoid at the junction with the blade (the two last-named genera have petioles articulated with the leaf blade); Oxanthera has three species with unifoliolate leaves with articulated petioles and one simple-leaved species with nonarticulated petioles."



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.



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Citrus ID Edition 2
October, 2011