1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus eichleri (Engl.) Hook.f.

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

    [CATE]

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

    Diagnostic
    Basal inner side of the spathe with wart-like to tongue-like emergences, peduncle short, appendix wide, irregularly broadly elliptic (‘oval’).
    Phenology
    Flowering time presumably from May until August, fruiting in October.
    General Description
    Tuber flattened globose, 2-15 x 2-8 cm, reddish, form long rhizomatose offsets into all directions, roots are formed on the entire tuber. LEAF 20-80 cm high, appearing before or nearly with the inflorescence, solitary or in pairs. Petiole 14-60 cm long, unicoloured green or brownish; or basally brownish and upper part green. Blade 20-40 cm in diameter, the three main segments long stipitate and with leaflets only from 2nd division order onwards. Rachis cuneiformly winged (‘keilförmig geflügelt’). Terminal leaflets broadly and inversely egg-shaped, 6-13 x 4-6 cm, ending in a distict 0.5-1 cm long tip; margin smooth to slightly crinkly. Cataphylls 3, elongate broadly elliptic (‘länglich oval’), the inner one extending to the open part of the limb of the spathe, 6-8 x 4-5 cm, pink to green with whitish spots, membranous. INFLORESCENCE sessile, appearing immediately after the leaf, 10-15 cm high. Peduncle 2-5 cm long, 0.3-1 cm in diameter, pale green, erect. Spathe 5-20 x 4-35 cm, usually more broad than long, divided by a clear constriction into a cup-shaped tube and an open limb; opening of the spathe dropping away at an angle and ± circular, situated exactly at the height of the transition zone between the appendix to the staminate zone. Tube 3-15 x 3-30 cm, cup-shaped to [com]pressed globose; outside light-brown with purple veins; inside basally (3/4 of the tube) dark-purple, with longitudinal, congested, verruciform emergences and folds, becoming smooth and light brown to beige or light-green towards the constriction. Open limb 2.5-5 x 3-5 cm, hanging or horizontal to tilted erect, attenuating on one side into a triangle, otherwise narrow, margin strongly crinkled, outside and inside of variable coloratio, green to dark green or purple to light purple. Spadix sessile or stipitate for 0.2-0.5 cm, longer than the spathe, 10-25 cm long. Pistillate zone cylindrical, 1-3 x 0.5-2 cm, flowers congested. Staminate zone cylindrical to broadly elliptic (‘oval’) to slightly obconical, 1.5-4 x 0.8-2.5 cm, flowers are very congested but in distinct groups of (3-)4(-5) stamina. Appendix 8.5-18 x 2-6 cm, irregularly short conical to widely egg-shaped, surface light brown to beige to greenish, finely rugulose, apically rounded, hollow inside, basally constricted. No staminodes; sterile zone between pistillate and staminate zone hardly visible, 0.2-1 mm wide; ratio of pistillate to staminate zone 0.6-0.75 : 1. Pistillate flowers 2-3 mm big; ovary globose to ovoid, 1.5-2 x 1.5-2 mm, uni- to bi-locular, green; stigma sessile, beige to greenish brown, button-shaped, circular from, flattened circular from the side, unlobed to bi-humped, 1x1 mm. Staminate flowers 1-1.5 x 1-2 mm; anthers cubical, 1-1.5 x 1-1.5 mm; pores apical, one (bean-shaped, broadly elliptic (‘oval’) to circular) per theca; filament basally partly fused, hardly visible or at the most 0.5 mm long; connective channelled. Pollen orange, inaperturate, ovoid, 46-49 x 35-36 µm, exine smooth (psilate). INFRUCTESCENCE significantly elongating, 30-42 cm high; infructescence stalk 15-20 x 1-2 cm, coloured the same as the peduncle; infructescence cylindrical, 18-22 x 4-5 cm. Berries elongate-elliptical, somewhat flattened on one side, orange red, 11-16 x 5-12 mm, single to two seeded. Seeds ovoid and flattened on one side, greenish, 7-11 x 6 mm. Smell in the female phase of older meat, in the male phase of fish or prawns.
    Habitat
    Presumably following rivers in primary rain forests.
    Distribution
    Guineo-Congolese-Zambian transition zone: northern borders of Zaire and Angola

    Images

    Distribution

    Doubtfully present in:

    Angola

    Native to:

    Zaïre

    Amorphophallus eichleri (Engl.) Hook.f. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    47707.000
    Callens, H., Congo, DRC 16861.000

    First published in Bot. Mag. 115: t. 7091 (1889)

    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

    Art and Illustrations in Digifolia
    Digital Image © Board of Trustees, RBG Kew

    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

    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.

    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