1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus serrulatus 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

    Northern Thailand: Tak. Endemic

    Only known from the type locality.

    General Description

    Tuber globose to depressed globose, 1–2 × 1–3.2 cm, not branching. Leaf solitary; petiole thin, 12–18 × 0.3–0.5 cm, smooth, uniformly pale green; leaf blade subpedate, consisting of only 4–6 leaflets, ca 15 cm wide, central main segment undivided, lateral segments with 2–3 leaflets; leaflets elliptic to obovate, 6–8 × 3.5–4.8 cm, apex acute with a small mucronate tip, margins minutely crenate–serrulate, adaxially uniformly green or with a few small, orbicular, white spots; peduncle 1 cm long, 3 mm, entirely subterranean, smooth, white; spathe erect, convolute part slightly tapering to the apex, elliptic to elongate-elliptic, 2.5–3 × ca 2 cm, exterior off-white, pale pinkish or greyish with purplish veins, interior base dark purple, limb exterior entirely off-white or with pale purple spots, interior off-white, more or less densely spotted whitish pink and dark purple or almost entirely dark purple, apex acute, upper limb margin often curved inwards, irregularly serrulate and slightly rugulose on the outer surface, base interior smooth, long convolute, basal part usually subterranean; spadix longer than spathe, 4.5–5 cm long, sessile; pistillate flower zone consisting of one or two (incomplete) whorls of flowers, 1–2 × 3–5 mm, flowers congested; staminate flower zone cylindrical, 2.5–3 × 3 mm, flowers congested or distant; appendix stipitate, stipe 5–10 × 1 mm, fusiform, 1.8–3 cm long, 2–3 mm (at the middle), acutish, surface lower part smooth, whitish or spotted purple and white, upper part rugulose, greyish, dirty creamy or spotted purple and white. Ovary subglobose, more or less 2-lobed, laterally flattened, 1–1.5 mm, 1 mm high, white, with or without purple spots, bilocular; style oblique, elongate conical or conical, 0.3–1 × 0.5 (base)–0.2 (apex) mm, apex irregularly lobed, dirty greyish whitish or off-white; stigma 0.1–0.2 mm, very thin, lateral, flat or more or less cup-shaped and then sunken into the apical tissue of the style, circular or oval with a central depression. staminate flowers consisting of 1–3 stamens; stamens 1–1.3 mm long; filaments ca 0.3 mm long, connate; anthers globose 0.7–1 × ca 1 mm, creamy. Fruit not seen.

    Tuber subglobose to slightly elongate, 1.5-2 cm long, 1-2 cm in diam., not branching. Petiole thin, 12-18 cm long, 0.3-0.5 cm in diam., smooth, uniformly pale green; lamina subpedate, consisting of only 4-6 leaflets, ca. 15 cm wide, central main segment undivided, lateral segments with 2-3 leaflets; leaflets elliptic to obovate, 6-8 cm long, 3.5-4.8 cm wide, apex acute with a small mucronate tip, margins minutely crenate-serrulate, upper surface uniformly green or with a few small, orbicular, white spots. Peduncle 1 cm long, 3 mm in diam., entirely subterranean, smooth, white; spathe erect, convolute part slightly tapering to the apex, elliptic to elongate-elliptic, 2.5-3 cm long, ca. 2 cm in diam., outside pale pinkish or greyish with purplish veins, inside base dark purple, limb densely spotted whitish pink and dark purple or almost entirely dark purple, apex acute, upper limb margin often curved inwards and slightly rugulose on the outer surface, base inside smooth, long convolute, basal part usually subterranean; spadix longer than spathe, sessile; female zone consisting of one whorl of flowers, 1 mm long, 3 mm in diam., flowers congested; male zone cylindric, 2.5-3 mm long, 3 mm in diam., flowers congested or distant; appendix stipitate (stipe 0.5-1 mm long, 0.lmm in diam., fusiform, 1.8-2.5 cm long, 2 mm in diam. (at the middle), acutish, surface lower part smooth, whitish or spotted purple and white, upper part rugulose, greyish, dirty creamish or spotted purple and white. Ovary subglobose, more or less 2-lobed, laterally flattened, 1-1.5 mm in diam., 1 mm high, white, spotted purple, bilocular; style oblique, elongate conical, 1 mm long, 0.5 mm in diam., at the base, 0.2 mm in diam. at the irregularly lobed apex, dirty greyish-whitish; stigma 0.1-0.2 mm in diam., very thin, lateral, more or less cup-shaped, sunk into the apical tissue of the style, circular or oval with a central depression. Male flowers consisting of 1-3 stamens; stamens 1-1.3 mm long; filaments ca. 0.3 mm long, connate; anthers 0.7-1 mm long, ca. 1 mm in diam., creamish. Pollen striate.

    Habitat

    Not recorded.

    Distribution

    Native to:

    Thailand

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

    First published in Aroideana 29: 75 (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