1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus eburneus Bogner

        This species is accepted, and its native range is Borneo (Sarawak).

    [CATE]

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

    Distribution

    East Malaysia, Sarawak, endemic to Karst limestone formations of Padawan (Kuching Division) and Tebedu (Samarahan Division).

    Ecology

    Perhumid lowland forested limestone, growing deep in limestone cracks with leaf litter 25-350 m asl.

    General Description

    Medium-sized to large, robust, aseasonally dormant geophytic herb to 1.3 m. Tuber depressed-globose, not offsetting, to ca 35 cm diam. × ca 20 cm high, pale greyish brown, skin corky, broken up in numerous, small, angulate fields separated by narrow grooves. Leaf solitary; petiole very turgid, to ca 120 × ca 10 cm diam., smooth, uniformly pale green or occasionally with a few scattered whitish greenish spots; lamina moderately dissected, up to ca 240 cm, diam., rhachises winged distally from the basal branches; leaflets elliptic or elliptic-lanceolate, 12-60 cm long, 5.5-21 cm diam., mid or pale green, coriaceous, long acuminate. Inflorescence solitary, short pedunculate, largely hidden in cataphylls; cataphylls ca 6, lanceolate, pale olive brown to whitish or greenish with pale brownish flushes, largest up to ca 35 ×10 cm; peduncle 15-20 × ca 2.5 cm diam., pale green, entirely hidden by catap hylls; spathe erect, infundibuliform, ovate, base strongly convolute and hidden by cataphylls, separated from limb by a shallow constriction, limb slightly spreading, acute, margins revolute, 20-23 × 19-21 cm, outside creamy white, upper margins sometimes flushed with purple, inside base dark purple and then cream, limb cream with or without a pale purple flush, base within with numerous irregular, shallow warts and some shallow grooves. Spadix slightly longer than spathe, shortly stipitate, 21-26 cm long; female flower zone slightly conic, 2.5-3 × 2-2.5 cm diam., flowers slightly or variably distant; male flower zone cylindric, 4-5 × 1.5-2 cm diam., flowers congested; appendix 14-18 × 1.5-3 cm diam., terete or laterally com pressed, acute, cream, turning pale yellowish during male anthesis, surface rugulose and with scattered, short, shallow grooves, producing a smell of fish during female and male anthesis. Pistil (female flower) comprised of a depressed pyriform or oblong ovary, 2.5-4 diam.× ca 4-5 mm high, uni- or rarely (?) bilocular, top divided in three narrow lobes, base white or pale green, remainder dark purple; stigma thin, strongly sinuous, stellate, ± 2-lobed, partly sunken in be tween the three lobes emanating from the ovary, surface densely scaberulate, dirty greyish stained with purple, ca 1.5-2.5 diam. × ca 0.5-1 mm high, ± quadrangular in cross-section. Male flower consisting of 4-6 stamens, often elon gate parallel to the spadix-axis and connate with upper and/or lower flowers; stamens ca 1 mm long × ca 1-2 mm diam.; filaments ca 0.5 mm long, connate; anthers ca 0.5 mm long, free or connate, truncate or subtruncate, pores apical, free or connected within one flower or with other flowers and then irregularly elongate. Fruit a berry, very large, elongate, slightly angulate, 4.5 × 2 cm, red, 1-seeded. Seeds elongate conical, 3.5 cm long × 1.2 cm diam. at the point of germination, 0.7 at the opposite end, testa brownish.

    Distribution

    Amorphophallus eburneus Bogner appears in other Kew resources:

    First published in Willdenowia 18: 441 (1989)

    Accepted by

    • Boyce, P.C., Ipor, I.B. & Hetterscheid, W.L.A. (2010). A review of the white-flowered Amorphophallus (Araceae: Thomsonieae) species in Sarawak Gardens' Bulletin Singapore 61: 249-268.
    • 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

    Kew Backbone Distributions
    • Boyce, P.C., Ipor, I.B. & Hetterscheid, W.L.A. (2010). A review of the white-flowered Amorphophallus (Araceae: Thomsonieae) species in Sarawak Gardens' Bulletin Singapore 61: 249-268.

    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