1. Family: Euphorbiaceae Juss.
    1. Genus: Sclerocroton Hochst.
      1. Sclerocroton oblongifolius (Müll.Arg.) Kruijt & Roebers

        This species is accepted, and its native range is Central Tropical Africa.

    [FZ]

    Euphorbiaceae, A. Radcliffe-Smith. Flora Zambesiaca 9:4. 1996

    Habit
    A glabrous subshrub, monoecious; stems one or more, erect, 20–30 cm tall, sometimes up to 60 cm tall, simple or sparingly-branched, arising from a fairly slender horizontal woody rootstock.
    Leaves
    Leaves petiolate, the petioles 2–9 mm long, adaxially canaliculate; leaf blades (1.5)3–6(8) × (0.5)1–3.5 cm, usually oblong and parallel-sided, sometimes oblong-lanceolate with the sides not parallel, subacute to obtuse or retuse at the apex, rounded or truncate at the base, subentire or shallowly serrate with forwardly directed teeth, with 1–2 glands towards the base, and sometimes also glandular near the margin towards the apex and elsewhere, thinly coriaceous, somewhat glaucous on lower surface; lateral nerves in 8–15 pairs, slightly prominent beneath, scarcely so above, tertiary nerves reticulate.
    Stipules
    Stipules 2–7 mm long, linear-setaceous, acute, laciniate at the base, otherwise entire, ciliate, deciduous.
    Inflorescences
    Inflorescences terminal on the main axes, often overtopped by a succession of lateral shoots, sometimes leaf-opposed, (1)2–4(7) cm long, with a peduncle up to 1.5 cm long or sessile, all male or with 1(2) female flowers at the base; male bracts broad, encircling half the axis, often somewhat 3-lobed with broadly triangular lobes, acute and irregularly denticulate, ciliolate, fleshy at the base, glandular within, 3(5)-flowered; female bracts rather more deeply 3-lobed than the males; bracteoles minute.
    Flowers
    Male flowers: pedicels 1 mm long; calyx lobes 3, 0.5–1 mm long, ovate, irregularly denticulate-ciliolate, yellowish-green; stamens (2)3, free, 0.7 mm long. Female flowers: pedicels 2–4 mm long, extending to 7–10 mm in fruit; calyx lobes resembling those of the male flowers, but larger, and alternating with sessile glands; ovary 2 mm in diameter, 3-lobed, each lobe bearing 2 triangular-lanceolate appendages 1–1.5 mm long; styles 3, 4 mm long, connate at the base.
    Male
    Male flowers: pedicels 1 mm long; calyx lobes 3, 0.5–1 mm long, ovate, irregularly denticulate-ciliolate, yellowish-green; stamens (2)3, free, 0.7 mm long.
    Female
    Female flowers: pedicels 2–4 mm long, extending to 7–10 mm in fruit; calyx lobes resembling those of the male flowers, but larger, and alternating with sessile glands; ovary 2 mm in diameter, 3-lobed, each lobe bearing 2 triangular-lanceolate appendages 1–1.5 mm long; styles 3, 4 mm long, connate at the base.
    Fruits
    Fruit 1.2 × 1.6 cm, 3-lobed, septicidally dehiscent into 3 bivalved cocci, each valve bearing a triangular appendage 1–2 mm long; exocarp reddish- or purplish-tinged to dark purplish-brown, not separating from the 2–3 mm thick woody endocarp.
    Seeds
    Seeds 6–7 × 4–5 mm, ovoid-ellipsoid, smooth, shiny, pale grey mottled blackish, ecarunculate.

    Images

    Distribution

    Native to:

    Angola, Zambia, Zaïre, Zimbabwe

    Sclerocroton oblongifolius (Müll.Arg.) Kruijt & Roebers appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sep 1, 1958 Welwitsch [375], Angola Sapium oblongifolium K000425779 isotype
    Baum, H. [257], Angola Sapium oblongifolium K000425780 isotype

    First published in Biblioth. Bot. 146: 24 (1996)

    Accepted by

    • Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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