1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus staudtii (Engl.) N.E.Br.

        This species is accepted, and its native range is W. & S. Cameroon to Congo.

    [CATE]

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

    Distribution
    Guineo-Congolese region: western to central Cameroon
    Phenology
    Flowering from August til January.
    General Description
    Tuber flat globose to globose, 2-6 x 1.5-5 cm. LEAF emerging after flowering, to 1.5 m high. Leaf stalk 20-100 cm long or longer, smooth, purple and spotted green or green with fine sriation. Terminal leaflets elongate to elliptic, 10-20 x 5-8 cm, green. Cataphylls 2, 17 and 10 cm long, the inner one twice as long as the peduncle. INFLORESCENCE solitary, shortly peduncled, emmerging before the leaf. Peduncle 4-10 cm long, 0.5-1.5 cm in diameter. Spathe 6-17 cm long; divided by a distinct constriction into a bulging tube and an open, one-sided, triangular, acutely attenuating limb. Tube 3-6 x 3-8 cm; globose to broady ovoid ('oval'); outside light purple to greenish; inside basally dark purple, with tightly packed hair-shaped emergences; [emergences] 0.5-2 mm long, becoming more dispered towards the top. Open limb tilted erect, 4-11 cm long, one-sidedly shortly triangular, acutely attenuating, brown to purple, margin ± slightly undulate. Spadix sessile, 7-22 cm long, 1/2 times longer than the spathe ('1/2 mal länger als die Spatha'). Pistillate zone cylindrical, 0.5-1.5 x 0.5-1.2 cm, flowers congested. Staminate zone obconic to ovoid ('oval') , 1-2.2 x 0.5-1.5 cm, flowers congested. Appendix erect, long conical, 6-19 (-24, fide Ntépé Nyame 1988) cm long, 0.6-2 cm in diameter at the base, acutely attenuating ± evenly, brown purple, surface rough. Staminodes absent; sterile zone between pistillate and staminate zone absent; ratio of pistillate to staminate zone 0..4-0.5 : 1. Pistillate flowers 2-3 mm long; ovary ± globose to ovoid ('oval'), 1.5 x 1-2 mm, green to light purple, uni- to bilocular; stigma sessile to subsessile, 1-1.2 x 0.6-0.7 mm, circular to broadly elliptic ('oval') from above, flattened circular from the side, unlobed or with two small circular humps, gold yellow to brownish; stigma hardly visible or at the most 0.2-0.4 mm long. Staminate flowers 1-1.5 mm long; anthers ovoid to cubical, 0.7-1 x 0.8-1.8 mm, yellowish to cream; filaments short, less than 0.2-0.5 mm; pores apical, one broadly elliptic ('oval') pore per theca; connective channelled and sunken, darker than the anthers. INFRUCTESCENCE not known. Pollen inaperturate, exine smooth. Smell not known.
    Habitat
    Grows in shade, on humus rich soils in primary rainforests and has so far been rarely found
    Diagnostic
    Basal inner side of the spathe with hair-like emergences; Appendix as long as the spathe at the most.

    Distribution

    Native to:

    Cameroon, Congo

    Recorded in error in:

    Ivory Coast

    Amorphophallus staudtii (Engl.) N.E.Br. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Apr 1, 2006 Cheek, M. [11102 a], Cameroon K000339214
    Apr 1, 2006 Cheek, M. [11102 a], Cameroon K000339215
    Feb 1, 2004 Cheek, M. [10502], Cameroon K000746211
    Feb 1, 2004 Zapfack, L. [2013], Cameroon K000746210
    Jun 1, 2001 Cheek, M. [9578], Cameroon K000107708
    Jun 1, 2001 Mackinder, B. [155], Cameroon K000107677
    Jun 1, 2000 Buzgo, M. [716], Cameroon K000678182
    Jun 1, 2000 Buzgo, M. [717], Cameroon K000678183
    Apr 1, 1996 Sebsebe [5001], Cameroon K000107753
    Apr 1, 1996 Sebsebe [5001], Cameroon K000107754

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 8: 154 (1901)

    Accepted by

    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • 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

    Flora of West Tropical Africa
    • Engl., Pflanzenr. 4, 23C: 97.
    • in F.T.A. 8: 154 (1901)
    CATE Araceae
    • Ittenbach, S. 2003. Revision der afrikanischen Arten der Gattung Amorphophallus (Araceae). Englera. 25: 5-263
    Kew Backbone Distributions
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • 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

    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