1. Family: Rutaceae Juss.
    1. Genus: Balsamocitrus Stapf
      1. Balsamocitrus dawei Stapf

        This species is accepted, and its native range is Uganda.

    [FTEA]

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

    Habit
    Deciduous tree 6–21 m. high, occasionally branching very low and becoming double-stemmed; bark rough, dark grey or brown; branchlets armed with single or paired axillary spines, occasionally unarmed; spines 1–4.3 cm. long, straight, if paired one is shorter than the other.
    Leaves
    Leaves trifoliolate, some occasionally unifoliolate by abortion, glabrous; petiole 1.5–3.5(–4.5) cm. long, cylindrical; petiolule 2–10 mm. long on the lateral leaflets, 12–30 mm. long on the terminal leaflet; leaflets elliptic to ovate-lanceolate, variable in size, with the terminal leaflet always larger than the laterals, 5–14 cm. long, 2–6.5 cm. broad, acuminate or acute at the apex, cuneate at the base, irregularly crenulate, semicoriaceous; midvein prominent beneath especially towards the petiolule, lateral nerves 7–10 pairs; pellucid gland-dots dark and numerous.
    Inflorescences
    Inflorescence of contracted axillary panicles, 2–6.5 cm. long, irregularly and shortly branched; bracts small.
    Flowers
    Flowers greenish yellow to white; pedicels 2–4 mm. long.
    Calyx
    Calyx up to 2 mm. long; lobes ovate, acute.
    Corolla
    Petals oblong, 4–5 mm. long, obtuse.
    Stamens
    Stamens 8–10; filaments ± 2 mm. long; anthers ± 1.5 mm. long.
    Ovary
    Ovary 6–8-locular.
    Fruits
    Fruit spherical or ovoid-globose, 11–13 cm. long, 9–12 cm. in diameter, aromatic, yellow-orange when ripe, with a woody shell to 5 mm. thick, 6–8-locular.
    Seeds
    Seeds subellipsoid, 14–16 mm. long, 8–10 mm. in diameter, brown and glossy.
    Figures
    Fig. 3, p. 9
    Habitat
    Rain-forest; 900–1500 m.
    Distribution
    U1 U2 U4 not known elsewhere

    Images

    Distribution

    Balsamocitrus dawei Stapf appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1928 Dawe, M.J. [788], Uganda K000199533
    Jan 1, 1927 Dawe, M.J. [788], Uganda K000199534 Unknown type material
    Jan 1, 1927 Dawe, M.J. [1042], Uganda K000199535

    First published in J. Linn. Soc., Bot. 37: 505 (1906)

    Accepted by

    • Kalema, J. & Beentje, H. (2012). Conservation checklist of the trees of Uganda: 1-235. Kew Publishing, Royal Botanic Gardens, Kew.
    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.
    • Kokwaro, J.O. (1982). Flora of Tropical East Africa, Rutaceae: 1-52.

    Literature

    Flora of Tropical East Africa
    • W.J. Eggeling, Indigenous Trees of the Uganda Protectorate, ed. 2: 359, fig. 74 (1952).
    • Swingle, Bot. Citrus: 464, fig. 72 (1943).
    • Stapf in Journal of the Linnean Society of London, Botany 37: 505 (1906).

    Sources

    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.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    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