1. Family: Araceae Juss.
    1. Callopsis Engl.

      1. This genus is accepted, and its native range is E. Tropical Africa.


    CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

    Tropical humid forest; creepng, rhizomatous geophytes, in leaf litter.
    General Description
    Laticifers simple, articulated. HABIT : small evergreen herbs, stem a slender hypogeal rhizome, internodes very short. LEAVES : usually minutely hispid on petiole and abaxial surface of blade. PETIOLE : sheath very short. BLADE : cordate-ovate; primary lateral veins pinnate, running into marginal vein, higher order venation reticulate. INFLORESCENCE : 2 in each floral sympodium, appearing with the leaves. PEDUNCLE : slender, equalling or longer than petiole, sometimes exceeding entire leaf. SPATHE : broadly ovate-elliptic to subcircular, acuminate, decurrent, white, ± fully expanded and sometimes arching backwards at anthesis, persistent, closing at fruiting stage. SPADIX : shorter than spathe, female zone entirely adnate to spathe, ± laxly flowered with gynoecia ± biseriately arranged, contiguous with male zone or with short, naked axis in between, male zone equalling female, cylindric, densely flowered, fertile to apex. FLOWERS : unisexual, perigone absent. MALE FLOWER : probably 1-androus (2-3-androus according to Engler 1920a), stamens free, depressed subquadrate, anthers sessile, thecae opposite with subovoid microsporangia dehiscing by single apical pore. POLLEN : inaperturate, spherical to subspheroidal, medium-sized (mean 37 µm.), exine papillate-spinose. FEMALE FLOWER : gynoecium slender, flask-shaped, falcate, yellowish, ovary 1-locular, ovule 1, anatropous, placenta basal, style rather long-attenuate, stigma small, subhemispheric, slightly wider than style. BERRY : ellipsoid and slightly angled, style forming persistent mucro, green. SEED : ellipsoid, testa ± smooth, thin, embryo elongate, straight to slightly curved, endosperm copious.
    Small rhizomatous geophyte; leaf blade with reticulate fine venation; spadix fertile to apex; flowers unisexual, perigon absent; stamens free; gynoecium slender, flask-shaped with tapering style. Differs from Nephthytis in having cordate-ovate leaves, which are minutely hispid, a pure white spathe and female zone of spadix adnate to the spathe.
    E. Trop. Africa.

    Araceae, S.J. Mayo. Flora of Tropical East Africa. 1985

    Small perennial terrestrial herbs with creeping slender underground rhizome
    Leaves several, subtended basally by small cataphylls; petiole lacking apical pulvinus; sheath inconspicuous; blade cordate-ovate; main side veins excurrent into margins, finer venation reticulate
    Spathe simple, broadly ovate-elliptic to subcircular, expanded, arching backwards, persistent in fruit, mucronate to shortly acuminate, decurrent at base Spadix shorter than spathe, basal pistillate part adnate on one side to spathe and ± contiguous (naked interstice sometimes present) with free apical staminate part Inflorescence appearing with leaves, longer than petiole; peduncle slender
    Flowers unisexual, lacking perigon
    Stamens free, densely congested, sessile; anthers dehiscing by short apical elliptic pores; connective ± slender
    Pistils few, narrowly flask-shaped, ± distant towards base of spadix; ovary unilocular, with single basal ovule; stigma capitate on slender attenuate style
    Berries elliptic, 1-seeded
    Seed with endosperm; embryo elongate.



    Doubtfully present in:


    Native to:

    Kenya, Tanzania

    Callopsis Engl. appears in other Kew resources:

    First published in Notizbl. Königl. Bot. Gart. Berlin 1: 27 (1895)

    Accepted by

    • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.


    Flora of Tropical East Africa
    • in E.P. 73 (IV. 23F): 58, fig. 8 (1920)
    • in N.B.G.B. 1:27 (1895)


    CATE Araceae
    Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.

    Flora of Tropical East Africa
    Flora of Tropical East Africa

    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