Changes

*Lemon (En). *Citronnier (Fr)

*Tree, 3-6 m tall with stout stiff spines. *Leaves oblong to elliptic-ovate, 6-12.5 cm × 3-6 cm; flowers white. *Fruit an ovoid to cylindrical berry, 7-12.5 cm long, yellow to golden, with a thick rough peel, and 8-10 segments.  Lemon prefers cool, dry surroundings, mean annual temperatures 15-18°C, annual rainfall up to 1250 mm. Acid and sweet forms are distinguished, and many hybrids exist. A well-known cultivar is "Rough Lemon", a lemon × citron hybrid, sometimes given the species name ''Citrus jambhiri'' Lush., now a popular rootstock for citrus. The lemon is closely related to the citron ( ''Citrus medica'' L.).

56*Morton, 60J.F., 691987. Fruits of warm climates. Creative Resource Systems Inc., Winterville, N.C., USA. 503 pp. *Ochse, J.J., Soule, M.J., Dijkman, M.J. & Wehlburg, C., 1961. Tropical and subtropical agriculture. 2 Volumes. The Macmillan Company, New York. 1446 pp. *Reuther, W., Webber, H.J. & Batchelor, L.D. (Editors), 1967. The Citrus industry. Revised ed. 4 Volumes. Division of Agricultural Sciences, University of California. == Authors == P.C.M. Jansen, J. Jukema, L.P.A. Oyen, T.G.van Lingen