1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus mullendersii Malaisse & Bamps

        This species is accepted, and its native range is S. DR Congo to NE. Angola.

    [CATE]

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

    Phenology
    Flowers in September.
    Habitat
    Zambesic region: West Angola to Central Zaire. In savannas, tree savannas and gallery forests
    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 distinctly longer than the spathe.
    General Description
    Tuber globose to [com]pressed globose, 6-10 x 2.5-4 cm, without offsets, surface rough to scaly. LEAF not known (see fig. 1C, Malaisse & Bamps 1993). Cataphylls 3; the inner one more than half as long or longer than the peduncle, elongate to lanceolate, membranous, pink?, with numerous small, circular to elongate, dark (brownish?) spots, 7-15 x 0.7-1.5 cm; the outer ones much smaller, 1-10 x 1-1.5 cm. INFLORESCENCE solitary, erect, flowering before the emergence of the leaf, 33-43 cm high. Peduncle 7-8 x 0.5-1 cm, slightly rough to smooth. Spathe 10-17 cm long; arranged into a lobed, triangular open limb and an asymmetric, ovoid ('oval') to triangular tube by a distinct constriction. Tube 3.5-6.5 x 2-4 cm; asymmetric; ovoid ('oval') to triangular; outside light purple with few, dark, circular spots; inside basally dark purple, at the height of the constriction with a light (whitish) region, with broad ± parallel running, barely intertwining ribs, these evenly high in lateral view. Open limb sticking out laterally to tilted erect, outside dark purple, inside purple, 6.5-10.5 x 6-13 cm, incised by up to two thirds of its length and forming broadly elliptic ('oval') lobes; lobes 5-6, broadly elliptic ('oval') , acutely attenuating, 3.5-7 x 2.5-5.5 cm, margin smooth. Spadix sessile, erect, 23-36 cm long, at least twice as long as the spathe. Pistillate zone cylindrical, 1-2.2 x 0.8-1.3 cm, flowers congested. Staminate zone cylindrical to slightly obconic, 1.5-3.6 x 0.7-1.5 cm, flowers very congested. Appendix strung-out conical, 20-32 cm long, 0.7-1.5 cm in diameter at the base, purple, not or slightly constricted above the staminate zone, apically gradually narrowing, surface smooth to slightly velvety. Stamodes absent; sterile zone between pistillate and staminate zone 0-1 mm wide; ratio of pistillate zone to staminate zone 0.6-0.75 : 1. Pistillate flowers 2.5-3 mm long; ovary ovoid ('oval') to elongate inverse egg-shaped, 1-2.5 x 1-2 mm, unilocular, one basal ovule-attachment; style 0.1-0.5 x 0.4-0.6 mm, darker (purple?) than the ovary; stigma 0.4-0.8 x 1-1.7 mm, circular to polygonal from above, slightly hourglass-shaped ('uhrglassförmig') or shaped like a mushroom-hat ('Champignon-hut') from the side, unlobed, papillose, darker (black purple?) than the ovary. Staminate flowers with 4-5 stamens per flower; anthers ovoid to cubic with rounded corners, free, 1.5-2 x 1-1.8 mm; connective darker than the thecae (purple brown?), forming a very narrow channel; filament short, wide, 0.4-0.6 mm long, free or basally fused; pores apical, circular to broadly elliptic ('oval') , one pore per theca or rarely two per theca visible. Pollen inaperturate, exince oreolate bo fossulate. INFRUCTESCENCE unknown.

    Distribution

    Native to:

    Angola, Zaïre

    Amorphophallus mullendersii Malaisse & Bamps appears in other Kew resources:

    First published in Bull. Jard. Bot. Natl. Belg. 62: 176 (1993)

    Accepted by

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

    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