1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus teuszii (Engl.) Mottet

        This species is accepted, and its native range is N. Angola to W. DR Congo.

    [CATE]

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

    General Description
    Tuber not known. LEAF at least 40-60 cm high, emerging shortly after flowering; petiole at least 30-50 cm long, smooth, green. Blade ca. 40-80 cm in diameter; rachis narrowly cuneiformly ('keilförmig') winged. Terminal leaflets 3-8 x 1-2 cm, elongate to broadly elliptic ('oval') , attenuating into a 1 cm long tip. Cataphylls 3; 2-3, 6-10 and 9-15 cm long; the inner one somewhat longer than the peduncle, with purple stripes. INFLORESCENCE solitary, appearing before the leaf, 14-43 cm high; peduncle 4-10 cm long, 0.5-1.5 cm in diameter, smooth. Spathe 9-28 cm long, divided by a slight, distinct constriction into a short, slightly assymetric, ovoid ('oval') to cylindrical tube and a deeply incised, open limb. Tube 3-10 x 2-4 cm, ovoid ('oval'), asymmetric to triangular, only entirely closed at the base, then expanding by bulging out, the 'spathe margin' opening gradually; outside green; inside basally ± smooth to flatly ribbed, ribs with flat to flattened, or slightly raised veins. Open limb 6-20 x 4-12 cm, deeply incised to strongly lobed, usually three(-seven)lobed, with the lobes ('Zipfel') opposite the spathe opening being the longest (incised most deeply), reflective ('reflektierend'), outside green, inside blackish to purple. Lobes ver broadly elliptic ('breit oval') , sometimes incised a second time. Spadix sessile, tilted, sometimes very tilted when emerging from the axis, 10-32 cm long, ± as long as the spathe. Pistillate zone cylindrical, 1-1.5 x 0.7-1 cm, flowers congested. Staminate zone cylindrical to slightly conical, 2-3 x 0.8-1 cm, flowers entirely congested. Appendix long conical, 3-28 cm long, 0.8-1.8 cm in diameter at the base, apically rounded, basally slightly constricted, greenish, somewhat meandering. Staminodes absent; sterile zone between pistillate and staminate zone 0-2 mm wide; ratio of pistillate to staminate zone 0.6-0.7 : 1. Pistillate flowers 2-3 mm long; ovary 1.5-2.5 x 1-2 mm, ovoid ('oval'), elongate to ovoid ('oval'), green, unilocular, one basal anatropous ovule-attachment; stigma sessile, 0.5-1 mm in diameter, globose to discoid, sometimes with a depression in the centre, unlobed. Staminate flowers with 2-4 stamens; anthers globose to cubical, 0.8-1.5 x 1-1.5 mm, yellow; filaments short, 0.4-0.8 mm long; pores apical to slightly lateral, elongate to broadly elliptic ('oval') , one per theca visible; connective even or slightly raised. Pollen inaperturate, exine smooth (psilate). INFRUCTESCENCE not known. Smell not known.
    Diagnostic
    Basal inner side of the spathe with distinctly raised, parallel running ribs or with platform-like emergences which mimic ribs; open limb of the spathe short to elongate-broadly elliptic (‘oval’) triangular, not twisted along its length axis by 180º; Spadix somewhat shorter or as long as the spathe.
    Distribution
    In the transition area of the Guineo-Congolese-Zambesic transition zone to the Zambesic region and restricted to a small region in the border area of Angola and Zaire.

    Distribution

    Native to:

    Angola, Zaïre

    Amorphophallus teuszii (Engl.) Mottet appears in other Kew resources:

    First published in Dict. Prat. Hort. 1: 137 (1892)

    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. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    Literature

    CATE Araceae
    • Ittenbach, S. 2003. Revision der afrikanischen Arten der Gattung Amorphophallus (Araceae). Englera. 25: 5-263
    Kew Backbone Distributions
    • Ittenbach, S. (2003). Revision der afrikanischen Arten de Gattung Amorphophallus (Araceae) Englera 25: 1-263.

    Sources

    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.
    http://creativecommons.org/licenses/by-nc-sa/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