Zanthoxylum davyi Waterm.


Cite taxon page as 'WFO (2020): Zanthoxylum davyi Waterm. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001132962. Accessed on: 24 Nov 2020'

Morphology

Tree, up to 30 m high. Leaflets acute or acuminate and slightly retuse at apex, lanceolate to oblong or narrowly elliptic with 16-20 or more pairs of primary lateral veins. Flowers 4-merous, in terminal panicles. Flowers creamy white.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 1
    • ]. 

    Like Z. capense but leaflets lanceolate, acute, with 16-20 pairs of veins.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Tree 8-30 m. tall; trunk armed with thorny bosses; branches glabrous, aculeate with aculei 1-5 mm long, straight or slightly curved upwards. Leaves 8-25 cm long; rhachis grooved above. Leaflets sessile, opposite or subopposite, (2)3-6-jugate, becoming progressively larger from the basal pair upwards to the apical one, terminal leaflet sometimes petiolulate or sometimes aborted; lamina 2-7 x 0.8-2.5 cm, lanceolate to narrowly elliptic and ± asymmetric, dotted with pellucid glands in the marginal sinuses only (in our area ), acuminate and slightly retuse at the apex, margin serrate or crenulate-serrate, cuneate or obtuse and slightly callose-auriculate at the base; nerves very numerous and rather closely spaced. Inflorescence of terminal panicles 4-6 cm long; bracts and bracteoles very small, caducous. Flowers 4-merous. Male flowers: pedicellate, with pedicels 1-1.5 mm long, usually in clusters at the ends of the panicle-branches; sepals 4, slightly united at the base, ovate, 0-6 mm long; petals 2.7 x 1.3 mm, imbricate, elliptic; stamens 4; filaments 3-5 mm long, linear; anthers dorsifixed, ovate, 1 mm long; gynophore very short, surmounted by the vestigial ovary. Female flowers: not seen from our area. Fruit 5 mm in diam., subsessile, gland-dotted. Seed globose, black, shiny.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Habitat

    Forest, forest patches.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 1
    • ]. 

    Evergreen forests.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    In forests or forest patches.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Distribution

    Knysna to tropical Africa.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    S: Victoria Distr., also in the Transvaal, Swaziland and Cape Prov. (Transkei).

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

      Bibliography

    • 1 Herman, PPJ; Retief, E. 1997. Plants of thenorthern provinces of South Africa: keys and diagnostic characters. Strelitzia 6: 1 - 681. National Botanical Institute, Pretoria.
    • 2 Manning, JC; Goldblatt, P. 2012. Rutaceae: Zanthoxylum L. 722 - 722. South African National Biodiversity Institute, Pretoria.
    • 3 Mendonça, FdeA. 1963. 40. Rutaceae. Fl. Zambes. 2(1): 180 - 210. Crown Agents for Oversea Governments & Administrations, London.

     Information From

    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • A All Rights Reserved
    Global Tree Search
    https://tools.bgci.org/global_tree_search.php
    BGCI. 2018. GlobalTreeSearch online database. Botanic Gardens Conservation International. Richmond, U.K. Available at www.bgci.org. Accessed on 30/11/2018.
    • B Botanic Gardens Conservation International
    Rutaceae
    • C CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).