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

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

    [CATE]

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

    Distribution

    Only known from the type locality.

    Northern Thailand: Khampaeng Phet. Endemic.

    General Description

    Tuber elongate, thin, 10–24 × 1–3 cm, rarely branching. Leaf solitary; petiole to 40 cm × 5–12 mm, smooth, uniformly rich burgundy red, paler when older; leaf blade to 70 cm, rachises narrowly winged throughout; leaflets elliptic to elliptic-obovate, 2–13.5 × 1.5–6.5 cm, apex acute, adaxially mid green. Inflorescence solitary; peduncle appearance as petiole, 19–35 cm × 5–7 mm; spathe broadly ovate, 4–6 × 5–6 cm, at first erect, then the upper part moving a little away from the spadix at pistillate anthesis and at staminate anthesis the lower half reflexing to a position at a right angle with the spadix-axis, pulling the upper part of the spathe further away from the spadix, exterior white with a green flush, interior white, base interior densely verruculate; spadix much longer than spathe, 11.5–21 cm long; pistillate flower zone cylindrical, 5–8 × 6–7 mm, flowers distant; ovary depressed, oval in cross-section, sunken into the spadix-axis, 1.5–2 × 8 mm, slightly bilobed by two opposite, shallow peripheral constrictions, pale green; style short, thick, 0.5 × 1 mm; stigma very thin, 1 × 0.1–0.2 mm, shallowly bilobed, verruculate, dirty creamy; staminate flower zone fusiform, 1.5–2.5 cm × 9–11 mm, flowers distant; staminate flowers synandriate, consisting of 3–5 stamens; filaments fused into a column, 1–2 × 2 mm, off-white; anthers fully fused, more or less disciform, 2.5–3 × 1 mm high, with a shallow, elongate, central depression, pores lateral, slit-like; appendix narrowly elongate fusiform, 9–18 cm × 7–12 mm at the middle, base tapering, apex acute, surface smooth, off-white or creamy or pale green. Fruit ovoid to lageniform, smooth, ca 1 × 1 cm, ripening glossy white.

    Tuber elongate, thin, 10-24 cm long, 1-2 cm in diam., rarely branching. Petiole to 40 cm long, 5-7.5 mm in diam., smooth, uniformly rich burgundy red; leaflets elliptic to elliptic-obovate, 2-5 cm long, 1.5-4.5 cm wide, apex acute, upper surface mid green Inflorescence solitary; peduncle as petiole, 19 cm long, 0.5 cm in diam.; spathe broadly ovate, 4 cm long, 5 cm in diam., at first erect, then the upper part moving a little away from the spadix at female anthesis and at male anthesis the lower half reflexing to a position at a right angle with the spadix-axis, pulling the upper part of the spathe further away from the spadix, outside white with a green flush, inside white, base inside densely verruculate; spadix much longer than spathe, 11.5-13 cm long; female zone cylindric, 0.5-0.6 cm long, 0.6 cm in diam., flowers distant; male zone fusiform, l.5 cm long, 0.9- 1 cm in diam., flowers distant; appendix narrowly elongate fusiform, 9-11 cm long, 0.7-0.8 cm in diam. at the middle, base tapering, apex acute, surface smooth, off-white, creamish or pale green. Ovary depressed, oval in cross-section, sunken into the spadix-axis, 1.5-2 mm in diam., 0.8 cm high, slightly bilobed by two opposite, shallow peripheral constrictions, pale green, 2(-3?)-locular; style short, thick, 0.5 mm long, 1 mm in diam.; stigma very thin, 1 mm in diam., 0.1-0.2 mm thick, shallowly bilobed, verruculate, dirty creamish. Male flowers fully synstaminate, consisting of 3-5 fully fused stamens; filaments fused into a column, 1-2 mm long, 2 mm in diam. off-white; anthers fully fused into a disc, 2.5- 3 mm in diam., 1 mm high, with a shallow, elongate, central depression, pores lateral, slit-like; pollen few, released immediately after the reflexing of the spathe base and being dropped on its horizontal inner surface. Fruiting part elongate, berries crowded; berries ovate to lageniform, smooth, ca. 1 cm long, ca. 1 cm in diam., green when immature, then turning glossy white, 1- to 3-seeded. Seeds subglobose to globose, ca. 5 mm in diam., greenish to blackish.

    Habitat

    Soil pockets in limestone.

    Distribution

    Native to:

    Thailand

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

    First published in Aroideana 29: 71 (2006)

    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.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