From the archive record
Orange, lemon and Guava growing in abundance in an orchard in Sikkim Orange: An orange specifically, the sweet orange is the citrus Citrus sinensis and its fruit. It was the most commonly grown tree fruit in the world. The orange is a hybrid of ancient cultivated origin, possibly between pomelo (Citrus maxima) and mandarin (Citrus reticulata). It is an evergreen flowering tree generally growing to 9--10 m high (although very old specimens have reached 15 m). The leaves are arranged alternately, are ovate in shape with crenulate margins and are 4--10 cm long. The orange fruit is a hesperidium, a type of berry. Guava: The term "guava" appears to derive from Arawak guayabo "guava tree", via the Spanish guayaba. It has been adapted in many European and Asian languages, having a similar form.