Citremon

Synonyms

None

Cultivar or taxon

Citrus x limon (L.) Osbeck, pro sp. X Citrus trifoliata L. (sensu Mabberley 2004, Bayer et al. 2009); Citrus limon (L.) Burm. f. x Poncirus trifoliata (L.) Raf. (sensu Swingle and Reece 1967 sec. Cottin 2002; sensu Tanaka sec. Cottin 2002; sec. NPGS/GRIN 2010)

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 medium, wings narrow, adjoining the blade. Leaflets one or three, margin bluntly toothed, rachis wings absent, shade leaflet blades 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 light green with some break to yellow (5), green-yellow (6), yellow (7-10), yellow-orange (11), or orange (12); rind texture medium rough (6-7) or rough (8); firmness leathery; navel absent; flesh orange; taste sour.

Swingle and Reece (1967) provided the following additional notes on the group: "Many of these hybrids show abnormally small leaves in germinating and soon die (Swingle, 1913); others are broad-leaved. One, the Highgrove, is a very fast grower with fruits like a lemon but rougher and more seedy."

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. 1913. Variation in first-generation hybrids (imperfect dominance): its possible explanation through zygotaxis. Comptes Rendus de la 4'eme Conference Internationale de Genetique [Paris, 1911] 1913: 381–394.

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

             Unifoliolate leaf and trifoliolate leaf of    Citrus limon      x  Poncirus trifoliata                      (1449,   Riverside, CA)

Unifoliolate leaf and trifoliolate leaf of Citrus limon x Poncirus trifoliata (1449, Riverside, CA)

             Trifoliolate leaf of  Citrus limon     x  Poncirus   trifoliata                      (1449, Riverside,   CA)

Trifoliolate leaf of Citrus limon x Poncirus trifoliata (1449, Riverside, CA)

             Fruit of  Citrus limon     x  Poncirus   trifoliata                      (1449, Riverside,   CA)

Fruit of Citrus limon x Poncirus trifoliata (1449, Riverside, CA)

             Fruit of  Citrus limon      x  Poncirus   trifoliata                      (1449, Riverside,   CA)

Fruit of Citrus limon x Poncirus trifoliata (1449, Riverside, CA)

             Fruit cross-section of  Citrus limon     x  Poncirus   trifoliata                      (1449, Riverside,   CA)

Fruit cross-section of Citrus limon x Poncirus trifoliata (1449, Riverside, CA)