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  1. Family: Rubiaceae Juss.
    1. Genus: Psydrax Gaertn.
      1. Psydrax kaessneri (S.Moore) Bridson

        This species is accepted, and its native range is S. Somalia to N. Mozambique.

    [FZ]

    Rubiaceae, D. Bridson. Flora Zambesiaca 5:2. 1998

    Habit
    Shrub to 3 m tall, often scandent, usually with short perpendicular lateral branches, glabrous; bark pale grey, often with tissue-like flakes peeling off the young stems.
    Leaves
    Leaves not restricted to apices of branches; blades 3–8 × 1.5–6 cm, broadly elliptic to round or sometimes obovate, rounded or sometimes obtuse at apex, acute or occasionally obtuse at base, subcoriaceous to coriaceous, moderately shiny on upper surface; lateral nerves in 3–4 main pairs; tertiary nerves coarsely reticulate, prominent on both surfaces; domatia present as small punctured blisters; petioles 2–4 mm long, rather stout; stipules 4–5 mm long with a short truncate to triangular base bearing a linear keeled lobe.
    Flowers
    Flowers 5-merous, borne in subsessile 5–30-flowered, subumbelliform cymes; peduncles up to 2 mm long; pedicels 2–8 mm long, glabrous; bracteoles inconspicuous.
    Calyx
    Calyx tube 1.25 mm long, glabrous; limb reduced to a dentate rim, ciliate.
    Corolla
    Corolla whitish; tube 4–5 mm long, with a ring of deflexed hairs above the mid-point inside; lobes 6 × 2.5 mm, oblong, acute or obtuse.
    Anthers
    Anthers reflexed.
    Style
    Style 9 mm long.
    Pollen presenter
    Pollen presenter 2–2.5 mm long; disk glabrous.
    Fruits
    Fruit 7–9 × 9–11 mm, prominent at the apex, black; pedicels accrescent.
    Pyrene
    Pyrene almost semicircular in outline, acute at apex, rounded at base, pale fawn-coloured, rugulose.
    [FTEA]

    Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

    Habit
    A shrub, often scandent to 3m. tall, usually with short lateral branches at right-angles to the stem, glabrous; young branches covered with pale greyish bark, often peeling in tissue-like flakes.
    Leaves
    Leaves not restricted to apices of branches; blades broadly elliptic to round or sometimes obovate, 3–8 cm. long, 1.4–6 cm. wide, rounded or sometimes obtuse at apex, acute or occasionally obtuse at base, subcoriaceous to coriaceous, moderately shiny above; lateral nerves in 3–4 main pairs; tertiary nerves prominent and coarsely reticulate on both faces; domatia present as small punctured blisters; petioles 2–4 mm. long, glabrous; stipules 4–5 mm. long, with a short truncate to triangular base bearing a linear, strongly keeled lobe.
    Flowers
    Flowers 5-merous, borne in subsessile 5–30-flowered, subumbellate cymes; peduncles up to 2 mm. long; pedicels 2–8 mm. long (but tending to be accrescent in fruit), glabrous; bracteoles inconspicuous.
    Calyx
    Calyx-tube 1.25 mm. long, glabrous; limb reduced to a dentate rim, ciliate.
    Corolla
    Corolla whitish; tube 4–5 mm. long, with a ring of deflexed hairs above mid-point inside; lobes oblong, 5–6 mm. long, 2.5 mm. wide, acute or obtuse.
    Anthers
    Anthers reflexed, linear-oblong.
    Pistil
    Style 9 mm. long; stigmatic knob (1.75–)2–2.5 mm. long.
    Disc
    Disk glabrous.
    Fruits
    Fruit black when mature, slightly wider than long, 7–9 mm. long, 9–11 mm. wide, with prominent apex; pyrene almost semicircular in outline, acute and crested at top, rounded at base, rugulose.
    Habitat
    Riverine thickets and forest edges; (20–)90–300 m.
    Distribution
    K7 T3 T6 T8

    Images

    Distribution

    Native to:

    Kenya, Mozambique, Somalia, Tanzania

    Synonyms

    Other Data

    Psydrax kaessneri (S.Moore) Bridson appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Kaessner [418], Kenya K000422547 Unknown type material

    Bibliography

    First published in Kew Bull. 40: 719 (1985)

    Accepted by

    • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.
    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of Tropical East Africa

    • Bridson in Kew Bulletin 40: 719 (1985).

    Sources

    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.
    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 2020. 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 2020. 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