1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus ongsakulii Hett. & A.Galloway

        This species is accepted, and its native range is Laos.

    [CATE]

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

    Distribution

    Only known from the type locality.

    General Description

    Tuber globose, to 2 cm in diam., annually producing numerous (to ca. 15), fusiform offsets. Petiole 7-9 cm long, ca. 2 mm in diam., smooth , pale yellowish green to dirty greenish brown, with or without darker, thin stripes; lamina 13-16 cm in diam., rachises narrowly winged throughout; main segments highly dissected; leaflets very small, 3-11 mm long, 2-4 mm in diam., elliptic to lanceolate, apiculate, margin very finely, slightly irregularly serrate, upper surface dark green with distinct whitish midrib, lower surface paler. Flowering shortly after leaf maturation, sometimes flowering up to four times consecutively, with ca. 3-4 weeks separating each flowering. Peduncle smooth, 16 cm long, 2 mm in diam., base whitish gradually changing to very pale yellowish-brown; spathe elongate ovate, 34 mm long, 14 mm \vide, erect, base tubular, loosely convolute, outside greyish-green with parallel dark greyish veins, inside dark purple, strongly verrucose, limb basal half auriculate, upper half pressed against the appendix, apex acute, outside whitish with thin, pale green venation, slightly transparent. Spadix sessile, longer than spathe, 42 nun long, slightly curved forward; female part 2 mm long, 3 mm in diam., flowers slightly distant; male part elongate, slightly conical, 12 mm long, 3 mm in diam. at the base, 2 mm in diam. at the apex, flowers distant, less so in the upper part; appendix shortly stipitate (stipe 1 mm long, purple), 27 mm long, 2 mm in diam. at the base, 1 mm in diam. at the apex, narrowly elongate conical, base narrowed to the stipe, apex obtuse, surface smooth, pale yellowish-brown. Ovaries depressed, two-lobed, ca. 2 x 1 mm in diam., 0.8 mm high, base white, upper half pale purplish, bilocular, locules separated by two strong lateral constrictions of the ovary wall; style conical, 0.2 mm long, 0.4 mm in diam. at the base, pale green; stigma depressed, 0.8 mm in diam., 0.3 nun high, very shallowly bi-lobed, minutely echinate, pale green. Male flowers consisting of 2-3 stamens; stamens irregularly angulate in shape, truncate, 0.3-0.5 mm in diam., 0.2-0.3 mm high; filaments ca. 0.1 mm long fused whitish· anthers 0.1-0.4 mm high, reddish purple; pores apical, orbicular. Fruiting part more or less globose, berries crowded; berries ovate, truncate, ca. 6 mm in diam., ca. 4 mm long, deeply bilobed, contracted between the seed-containing locules, surface rugulose, pale green with whitish punctation, area around the style remnant dark greyish green, 2-seeded; seeds globose or subglobose, 2-3 mm in diam., greyish to dirty greenish.

    Distribution

    Amorphophallus ongsakulii Hett. & A.Galloway appears in other Kew resources:

    First published in Aroideana 29: 67 (2006)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    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