1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus vogelianus Hett. & Billensteiner

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

    [CATE]

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

    Distribution

    Northern Thailand: Chiang Mai. Endemic.

    General Description

    Tuber elongate, strongly branched, 2–20 × 1–6 cm, branches to 3 cm. Leaves one or a few together; petiole 23–40 cm × 7–10 mm, smooth, dull reddish brown with few scattered, blackish short or long stripes; leaf blade 40–60 cm, open, relatively few and large leaflets, rachises winged throughout; leaflets elliptic-obovate to obovate, 5–18 × 2.5–9 cm, base of outer leaflets broadly decurrent, apex short acuminate, adaxially velvety deep green, margin very thinly lined reddish. Inflorescence long pedunculate; peduncle thin, 30–50 cm × 5–11 mm, smooth, uniformly pinkish brown with a few scattered blackish thin, short striations, paler upwards; spathe elliptic, erect, 7.5–8.5 × 5–7 cm, base and limb hardly separated but by a very faint constriction on the dorsal side, base very short convolute, exterior pale whitish green, interior smooth with very faint depressions, pale green; spathe limb acute, apex hooded, margins concavely involute, exterior creamy, interior creamy; spadix sessile, slightly longer than spathe, 8–14.5 cm long; pistillate flower zone cylindrical, 0.8–1 cm × 6–10 mm (excl. styles), flowers distant and sunk into the spadix axis, axis pale bluish green; ovaries disciform, sunk into the spadix axis, oval in cross-section, 3 × 2 × 1.5 mm high, apex truncate, tapering to the base, pale green; style short, 0.3 × 0.5 mm, cylindrical, pale green; stigma conical, shallowly bilobed, 0.8 × 0.8 mm, white, verruculose; staminate flower zone cylindrical, 1.7–2.5 cm × 9–15 mm, flowers congested; staminate flowers 2–4-androus; stamens 2 mm long; anthers truncate, off white; appendix elongate conical, 5.5–11.5 × 1–2 cm, base constricted, apex obtuse, surface smooth, dull pale greenish with a creamy flush at the base. Fruit ripening white.

    Tuber elongate, strongly branched, 12 cm long, 4 cm in diam. at the top, individual branches to 3 cm in diam., pale brown, producing one or a few leaves. Petiole dull reddish brown with few scattered, blackish short or long stripes, smooth, 23-40 cm long, 0.7-1 cm in diam.; lamina 40-60 cm in diam., open, relatively few and large leaflets, rachises winged throughout; leaflets elliptic-obovate to obovate, 5-18 cm long, 2.5-9 cm in diam., base of outer leaflets broadly decurrent, top short acuminate, upper surface velvety deep green, margin very thinly lined reddish. Inflorescence long peduncled; peduncle thin, 30 cm long, 5 mm in diam., smooth, uniformly pinkish brown with a few scattered blackish thin, short striations, upwards paler; Spathe elliptical, erect, 7.5 cm long, 5 cm in diam., base and limb hardly separated but by a very faint constriction on the dorsal side, base very short convolute, outside pale whitish green, inside smooth with very faint depressions, pale green; limb acute, top fornicate, margins concavely involute, outside creamish, inside creamish. Spadix sessile, slightly longer than spathe, 8 cm long; female part cylindric, 0.8 cm long, 0.6 cm in diam. (excl. styles), flowers distant and sunk into the spadix axis, axis pale bluish green; male zone cylindric, 1.7 cm long, 0.9 cm in diam., flowers congested; appendix elongate conical, 5.5 cm long, 1 cm in diam. (close to the base), base constricted, top obtuse, surface smooth, dull pale greenish with a creamish flush at the base. Ovaries disciform, sunk into the spadix axis, oval in cross-section, 3 mm in diam. (long axis) X 2 mm (short axis), 1.5 mm high, top truncated, tapering to the base, bilocular, pale green; style short, 0.3 mm long, 0.5 mm in diam. cylindric, pale green; stigma conical, distinctly bilobed-sinuate, 0.8 mm in diam., 0.8 mm high, white, verruculose. Male flowers consisting of 2-4 stamens; stamens 2 mm long; filaments thick, 1 mm long, 1.8 mm in diam., off white; anthers truncated, 1 mm long, 1 mm in diam., off white; pores apical, slit-like.

    Habitat

    Not recorded.

    Distribution

    Native to:

    Thailand

    Amorphophallus vogelianus Hett. & Billensteiner appears in other Kew resources:

    First published in Aroideana 26: 117 (2003)

    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