Zanthoxylum thorncroftii Waterm.


Cite taxon page as 'WFO (2020): Zanthoxylum thorncroftii Waterm. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001132965. Accessed on: 24 Nov 2020'

Diagnostic Description

Ramuli glabri, spinosis rectis 4-6 mm. longis armatis. Folia petiolata, 3-5 cm. longa; petioles 5 mm. longus, canaliculatus, pubescens; foliola sessilia, 0.6-3 cm. longa, 0.4-2 cm. lata, oblicpio-elliptica, aliquando subacuminata, apice retusa, basi rotunda vel paullo angustata, plerumque auriculata, glabra, infra costa conspicua et venis lateribus 3-7, supra distinctus, margine serrato et glandula una in sinu. Inflorescentia paniculata, floribus masculinis et femineis; pedunculus pubescens, petiolo longior. Sepala 1.5 mm. longa, elliptica, apice obtusa, ciliata. Petala 3.5 mm. longa, elliptica, apice obtusa. Fl. ['female'] staminis rudimentariis. Ovarium 3 mm. longum, globosum, obliquum, glanduloso-punctatum, 1-locularia, 2-ovulis ; stylus 1 mm. longus, teres ; stigma capitatum. Fl. ['male'] 4-staminis; filamenta linearia, 3 mm. longa; antherae globosae. Ovarium rudimentarium. Fructus ignotus.

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

    Morphology

    Tree, up to 12 m high. Inflorescence bearing male and female flowers. Leaflets sessile, obliquely elliptic, margins serrate with single gland at base of each sinus. Flowers yellow.

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

    Branches glabrous, armed with straight spines 4-6 mm long; bark dark brown. Leaves petioled, 3-5-jugate, 3-5 cm long; petiole 3-5 mm long, channelled on the upper surface, pubescent; rachis channelled and slightly pubescent above, usually glabrous beneath; leaflets sessile, 0.6-3 cm long, 0.4-2 cm broad, obliquely elliptic, mostly subacuminate, usually retuse at the apex, rounded or slightly narrowed at the base and usually eared, glabrous, with a prominent mid-rib beneath, distinct above, and 3-7 lateral veins, slightly darker on the upper surface; margins serrated with a single gland at the base of each sinus; terminal leaflet obovate. Inflorescence an axillary or terminal panicle bearing male and female flowers; peduncle and branches minutely pubescent and with the peduncle much longer than the petiole of the subtending leaf. Flowers unisexual. Sepals 1.5 mm long, elliptic, obtuse, ciliated. Petals 3.5 mm long, elliptic, obtuse. Stamens absent or rudimentary in female flowers. In male flowers filaments 3 mm long, linear; anthers globose. Ovary rudimentary in male flowers. In female flowers 3 mm long, globose, hardly unequal-sided, uni-locular, 2-ovuled, glandular; style 1 mm long, terete, stigma capitate. Fruit not seen.

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

    Habitat

    Woodland.

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

    Distribution

    Transvaal.

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

      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 Verdoorn, IC. 1919. The genus Fagara as represented in the South African herbaria. J. Bot. 57: 201 - 205.

     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).