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

        This species is accepted, and its native range is Tanzania to SE. DR Congo and Mozambique.

    [CATE]

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

    General Description
    Tuber disciform, or from above broadly elliptic (‘oval’), 4-13 x 2.5-7 cm, probably developing much bigger, apparently not forming offsets. LEAF ca. 60-100 cm high, appearing after the inflorescence. Petiole ca. 40-60 cm long, 1 cm in diameter, smooth. Blade 40-60 cm in diameter; rachis winged to broadly eared (‘geöhrt’) only from 2nd order branching onwards; terminal leaflets broadly elliptic (‘oval’) to elliptic, 5-15 x 1-8 cm, gradually attenuating into a 1 cm long tip. Cataphylls 3, broadly lanceolate, the inner one longer than the peduncle, 10-23 cm, spotted, membranous. INFLORESCENCE 25-120 cm high, appearing before the leaf. Peduncle 5-20 cm long, 0.5-2 cm in diameter, light-green to green with small brownish spots, smooth. Spathe 10-38 cm long, divided by a strong constriction into an asymmetric, ovoid (‘oval’) tube and a triangular, acute open limb. Tube 4-12 x 3-8 cm, the first half gradually broadening out in a triangle, the second half bulging out asymmetrically and converging again symmetrically towards the constriction; outside whitish green covered in dark green, irregularly shaped spots; inside basally with short warts and papillae (0.2-1 mm long), these run up [the inside of the tube] for 3-11 cm, papillae basally often fused into irregularly shaped longitudinal ribs which come appart again into distinct papillae closer to the constriction, dark purple. Open limb erect or somewhat sticking out to the side, 6-12 cm long, one side acute triangularly stretched, margin undulate and folded, outside dark green to light purple, inside purple to light purple. Spadix sessile or stipitate for 6 mm at the most, 15-80 cm long, 1½ to 2½ times as long as the spathe, emerging at an angle from the axis (peduncle). Pistillate zone cylindrical (rarely somewhat conical), 1-3 x 0.7-1.3 cm, flowers not always congested. Staminate zone obconical to ovoid (‘oval’), 1.5-5 x 1-3.5 cm, flowers congested. Appendix 11-72 cm long, long club-shaped to conical, bulging in the lower ¼ (3-6 cm in diameter) and then evenly attenuating; basally usually distinctly constricted and with longitudinal furrows, erect in a straight line or sometimes curved-erect; apically acute, light purple with a grey-green flush due to a wax cover. Staminodes absent; sterile zone between pistillate and staminate zone absent or 3 mm wide at the most; ratio of pistillate to staminate zone 0.5-1.1 : 1. Pistillate flowers 2-3 mm long; ovary 2 x 1.5 mm, elongate ovoid (‘oval’) to globose or somewhat flattened, uni- to bilocular, with one basal ovule-attachment, green. Style not visible or 1 mm long at the most; stigma 1 x 1.5-2 mm, globose from above, flat globose from the side, unlobed or flatly bi-humped, brownish to beige. Stamens 1-2 x 1.2-1.8 mm, 4-5 stamens form one flower; anthers elongate to ovoid, yellow; filaments not visible or < 0.1-0.4 mm long, free or partially fused at the base; pores apical, one elongate to broadly elliptic (‘oval’) [pore] or rarely two circular pores per theca; connective channelled, dark purple. Pollen inaperturate, 35.4-53.8 x 35.4-49.1 µm, globose, exine smooth (psilate). INFRUCTESCENCE slightly elongated; infuctescence stalk about 20 cm long; infructescence long cylindrical, cylindrical to ovoid (‘oval’), 8-16 x 2-3.5 cm, with remains of the spathe. Berries ovoid, 0.7-1.4 x 0.5-0.9 cm, one to two seeded, velvety chestnut brown?; seeds elongate ovoid, 6-9 x 4-6 mm, rough due to microscopic ribs, [that are] linked like a net, and irregular scales. Smell of decomposing flesh (in sched. Faulkner P345).
    Distribution
    Zambesic region and Sansibar-Inhambane regional mosaic: Zaire to eastern Tansania, Pemba and Sansibar
    Habitat
    In evergreen forests and river valleys
    Phenology
    Flowers from November till January.
    [FTEA]

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

    Habit
    Tuber discoid-hemispheric, 4–13 cm. in diameter, 2.5–7 cm. long.
    Leaves
    Petiole 1–1.5 m. long, ± 2.5 cm. in diameter at base, pale green or with very faint purplish blotching or grey with brown spots; blade ± 1 m. in diameter; ultimate lobes lanceolate, oblanceolate, narrowly elliptic or ovate, acuminate, 7–20 cm. long, 2–5 cm. broad, dull green above, glossier beneath.
    Inflorescences
    Inflorescence appearing before leaf, subtended by 2 oblong, subacute, pinkish and conspicuously green-spotted cataphylls 10–30 cm. long.
    Peduncles
    Peduncle 5–12 cm. long, 0.5–1.5 cm. in diameter, glossy green, unspotted.
    Spathe
    Spathe 11–23 cm. long; tube broadly obconic, strongly constricted at apex, 5–9 cm. long, 6–10 cm. in diameter, outer surface flesh-coloured with dull greenish circular spots overlain by numerous fine greenish or purplish-brown veins, inner surface reddish purple, densely and ± transversely rugulose-verruculose, the projections often scale-like and subtriangular and then 0.5–2 mm. long; limb broadly ovate, acuminate, 8–12 cm. long, 10–16 cm. broad, widely spreading, often ± horizontal, margins undulate, inner surface darker purple at margins, becoming reddish purple basally.
    Spadix
    Spadix 19–55 cm. long, longer than spathe (often more than twice as long); sterile appendix tapering gradually upwards, narrowed at base, 15–50 cm. long, 1.5–4 cm. in diameter near base, 0.3–2 cm. in diameter near apex, densely and shallowly verruculose, dull dark purple; staminate part obconic, strongly narrowed basally, 2–3.5 cm. long, 1.8–4 cm. in diameter; pistillate part ± cylindric, 1–3 cm. long, 1–2 cm. in diameter, often separated from staminate part by naked interstice up to 9 mm. long, pistils congested or somewhat distant.
    Stamens
    Stamens free, 1.5–2 mm. long, 1.5–2 mm. broad, bright yellow.
    Pistil
    Pistil 3 mm. long; ovary 2.5 mm. in diameter, green, 2-locular; ovules solitary in each locule; placentation at base of septum; stigma sessile, subglobose, shallowly 2-lobed, pale yellow.
    Fruits
    Berry 0.8–1 cm. in diameter, 2-seeded.
    Figures
    Fig. 8.
    Habitat
    Evergreen forest, woodland; 125–1050 m.
    Distribution
    T4 T6 T8 Z

    Images

    Distribution

    Native to:

    Mozambique, Tanzania, Zaïre

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

    Date Reference Identified As Barcode Type Status
    Jan 16, 1996 Faulkner [366] K000499374
    Jan 16, 1996 s.coll. [345], Mozambique K000499373
    Milne-Redhead, E. [10355] 16865.000
    Milne-Redhead, E. [9998], Tanzania 18919.000
    Faulkner, H. [P.345], Mozambique 22428.000
    Gassner [244], Malawi 47811.000

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 8: 150 (1901)

    Accepted by

    • Haigh, A. & Boyce, P.C. (2012). Flora Zambesiaca 12(1): 1-54. Royal Botanic Gardens, Kew.
    • 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
    Kew Backbone Distributions
    • Ittenbach, S. (2003). Revision der afrikanischen Arten de Gattung Amorphophallus (Araceae) Englera 25: 1-263.
    Flora of Tropical East Africa
    • Peter in Nachr. Ges. Wiss. Göttingen, Math.-Phys. Kl. 1929 (3): 195 (1930).
    • Engl. in A. Engler, Das Pflanzenreich 48 (IV. 23C): 97 (1911).
    • N.E. Br. in Flora of Tropical Africa 8: 150 (1901).

    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

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    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.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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