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  1. Family: Rutaceae Juss.

    1. Citrus L.

        2. This genus is accepted, and its native range is Himalaya to S. Central & S. Japan and Australia.

    [FZ]

    Rutaceae, F. A. Mendoça. Flora Zambesiaca 2:1. 1963

    Habit
    Small trees or shrubs.
    Leaves
    Leaves 1-foliolate, with winged rhachis.
    Flowers
    Flowers bisexual, (4) 5-merous.
    Stamens
    Stamens numerous, in phalanges.
    Ovary
    Ovary (4) 5-many-locular; loculi 4–8-ovulate.
    Fruits
    Fruit a large globose or ovoid or obovoid hesperidium, many-seeded and usually composed of numerous carpels.
    Note
    No indigenous species of Citrus are found in our area but some of the cultivated species (especially C. limon (L.) Burm. f. and C. aurantium L.) may become naturalized. Dr. G. R. Bates has kindly provided the appended note on the cultivation of Citrus in the Federation.
    [FTEA]

    Rutaceae, J.O. Kokwaro (University of Nairobi). Flora of Tropical East Africa. 1982

    Habit
    Small evergreen shrubs or trees up to 10 m. high
    Leaves
    Leaves unifoliolate, with articulation between leaflet and petiole (except in C. medica); petiole normally winged
    Flowers
    Flowers single or in small clusters in leaf-axils, bisexual; calyx cup-shaped, 3–5-lobed; petals 4–8, normally 5, white; stamens numerous (20–40), in groups
    Ovary
    Ovary with 8–15 united carpels; locules 4–8-ovulate, with axile placentation
    Fruits
    Fruit a large globose, ovoid or obovoid berry known as a hesperidium, usually composed of many carpels, many-seeded.

    Images

    Distribution

    Native to:

    Assam, Bangladesh, Belize, Bismarck Archipelago, Borneo, Cambodia, China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, Japan, Jawa, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, Nansei-shoto, Nepal, New Caledonia, New Guinea, New South Wales, Nicobar Is., Northern Territory, Philippines, Queensland, Solomon Is., South Australia, Sulawesi, Sumatera, Taiwan, Thailand, Vietnam, Wallis-Futuna Is., West Himalaya

    Introduced into:

    Alabama, Albania, Algeria, Andaman Is., Angola, Argentina Northeast, Argentina Northwest, Bahamas, Benin, Bermuda, Bolivia, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Canary Is., Cape Verde, Cayman Is., Central American Pac, Chad, Christmas I., Colombia, Cook Is., Costa Rica, Cuba, Dominican Republic, Ecuador, Egypt, El Salvador, Ethiopia, Fiji, Galápagos, Gambia, Guinea-Bissau, Gulf of Guinea Is., Haiti, Honduras, Illinois, India, Italy, Jamaica, Korea, Leeward Is., Libya, Madeira, Mauritania, Mauritius, Mexico Central, Mexico Southeast, Morocco, Mozambique, Niger, Niue, Oman, Panamá, Paraguay, Peru, Puerto Rico, Rodrigues, Réunion, Samoa, Santa Cruz Is., Society Is., Socotra, Somalia, Sri Lanka, Tadzhikistan, Tennessee, Tibet, Tonga, Trinidad-Tobago, Tunisia, Uzbekistan, Vanuatu, Venezuela, Windward Is.

    Citrus L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    New Guinea 34478.000
    Sands, M.J.S. [832], Papua New Guinea 29047.056
    Utteridge, T.M.A. [316], New Guinea 71256.000
    70000.266

    First published in Sp. Pl.: 782 (1753)

    Accepted by

    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

    Literature

    Flora Zambesiaca
    • Gen. Pl. ed. 5: 341 (1754).
    • Sp. Pl. 2: 782 (1753)
    Flora of Tropical East Africa
    • L., Gen. Pl., ed. 5: 341 (1754)
    • Sp. Pl.: 782 (1753)

    Sources

    Art and Illustrations in Digifolia
    Digital Image © Board of Trustees, RBG Kew

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0