1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus maxwellii Hett.

        This species is accepted, and its native range is SW. Thailand.

    [CATE]

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

    Distribution

    South Western Thailand: Kanchanaburi. Endemic.

    General Description

    Tuber subglobose to depressed globose, ca 10–23 × 12–14 cm high, exterior distinctly glossy. Leaf solitary; petiole to 160 cm × 9 cm, smooth, whitish with large, steel-green spots, these with a clear lower margin and a fuzzy upper margin; leaf blade to 250 cm diam., rachises winged distally from the main basal branchings; leaflets elliptic to elongate-elliptic, acuminate, to ca 16 × 7 cm. Inflorescence long pedunculate; peduncle smooth, 18–100 × 1–3.5 cm, silvery white with large, irregular, dark steel-green spots; spathe subcampanulate, broadly ovate to elongate-elliptic, 27–69 × 13–32 cm, base and limb separated by a very shallow constriction, base convolute and slightly laterally compressed, limb at first oblique then the upper part strongly arching forward, apex acute, margins strongly sinuous and folded, limb exterior lower half pale cream or pink with dull violet stains, upper half very dark maroon, interior lower half cream or purple, upper half very glossy dark maroon, base interior dark maroon, upper part dirty creamy, basal part densely clothed with fleshy, elongate, often hair-like warts, base exterior dull pale purplish with scattered, purplish greenish blotches or with many, large, confluent, steel-green, purple-margined blotches on a pinkish background; spadix sessile, slightly or distinctly longer than spathe, 30–90 cm long; pistillate flower zone cylindrical, 4–10 × ca 2–5 cm, flowers slightly distant or the lower ones congested, sometimes the lower part devoid of flowers; ovaries depressed, circular or oval-elliptic in cross-section, 1.5–2 × ca 3 × 2–3 mm, blackish maroon; style very long and slender, thickening near the apex, 8–15 × 1 mm at the base and ca 2 mm at the apex, blackish maroon; stigma ± broadly conic-depressed, depressed or conical, 2.5–3 × 1.5–2 mm, pale yellow, dirty whitish or dirty pale brownish, shallowly or distinctly 3(4–)-lobed, lobes broadly conical or flattened, obtuse, surface echinulate; sterile interstice (when present) ca 0.5 cm long; staminate flower zone elongate obconical or cylindrical, 6–13 × 1–3.5 cm, flowers congested; staminate flowers (3–)4–6(–7)-androus; stamens creamy; anthers conical, truncate, creamy with a violet connective or entirely maroon; appendix subulate, slender, 18–66 × 1–3.5 cm, smooth, acute, dull brownish violet, in small inflorescences myosuroid, producing small clear droplets all over the surface during pistillate anthesis and producing the smell of rotting flesh. Fruit not known.

    Habitat

    Mixed deciduous forest under limestone bluff, ca 700 m asl.

    Distribution

    Native to:

    Thailand

    Amorphophallus maxwellii Hett. appears in other Kew resources:

    First published in Blumea 39: 263 (1994)

    Accepted by

    • Boyce, P.C., Sookchaloem, D., Hetterscheid, W.L.A., Gusman, G., Jacobsen, N., Idei, T. & Nguyen, V.D. (2012). Flora of Thailand 11(2): 101-325. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
    • 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.

    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