Konrad Wothe / Sweet Orange (Citrus sinensis) fruit, Greece

Jose B. Ruiz / Sweet orange tree with fruit {Citrus aurantium sinensis} Valencia, Spain

Jose B. Ruiz / Orange tree flowers {Citrus aurantium sinensis} Spain

Jose B. Ruiz / Orange flowers {Citrus aurantium sinensis} Spain

Jose B. Ruiz / Oranges on tree {Citrus aurantium sinensis} Spain

Nigel Cattlin / Normal, mono-embryonic Orange (Citrus sinensis) seedlings with normal single development of root and shoot.

Nigel Cattlin / Two polyembryonic Orange (Citrus sinensis) seedlings showing bifurcation, a malformation, with each seed developing two plants.

Nigel Cattlin / False codling moth (Thaumatotibia leucotreta) caterpillar on Orange (Citrus sinensis) fruit, South Africa.

Nigel Cattlin / Rows of orange trees (Citrus sinensis) with green, maturing fruit in an orchard in the Low Veldt, Transvaal, South Africa, February

Nigel Cattlin / Rows of orange trees (Citrus sinensis) with green, maturing fruit in an orchard in the Low Veldt, Transvaal, South Africa, February

Nigel Cattlin / Young orange orchard on the Letaba Estates with hose for piped irrigation and nutrient drip, near Tzaneen, Transvaal, South Africa

Nigel Cattlin / Lance spraying of orange (Citrus sinensis) trees in fruit with pesticide without safety protection, South Africa, February