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

        This species is accepted, and its native range is China (SE. Yunnan) to N. Vietnam.

    [CATE]

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

    General Description
    Rhizome horizontal, brown and green, to ca. 25 × 5cm, branching infrequently, internodes 1–1.3cm, leaf scars transversely oval; offset tubers long lasting, depressed, broadly attached; roots mainly developed from ventral side. Leaves solitary or paired or simultaneous with inflorescence, latter emerging from petiole sheath; petiole moderately glossy, background color dirty grayish green but nearly totally hidden by large, oval, confluent, reddish brown spots, 40–60 × 1–1.5cm, turgid, glabrous; leaf blade 50–70 cm in diam., anterior segment less strongly developed than posterior ones; rachises short, unwinged except for distalmost parts; leaflets paler green abaxially, moderately glossy green adaxially, lanceolate, 8–32 × 2.5–7cm, margin crispate-undulate, apex acuminate; venation quite strongly impressed. Inflorescence solitary or with leaf, long pedunculate; peduncle reddish brown to yellowish brown, densely covered with dark reddish brown, narrowly oval, often confluent spots, ca. 50cm, ca. 1.5cm in diam. at base, ca. 0.8cm in diam. at apex, glabrous. Spathe erect, basally loosely convolute, apical 1/3 horizontally spreading, outside base very pale purplish brown on a ± cream-colored background, with numerous small and slightly larger, punctiform, rounded, partly confluent, dark purplish brown spots, distally outside dirty cream colored with less numerous rounded spots but numerous tiny ones, to margin flushed with gray, inside base dark maroon, distally ± cream-colored with few tiny dark purple spots, to margin flushed with dirty dark brownish green, ovate, funnel shaped, margin involute, base and limb not differentiated, 16–20 × 12–15cm, base within with very shallow, interconnected ridges, apex narrowly acute. Spadix emitting a strong cheesy smell, shortly stipitate, longer than spathe, 20–28cm; female zone cylindric or slightly obconic, 1.8–2.2 × 1–1.3cm, distal limit irregular, flowers congested; ovary bright pale green with tiny reddish purple dots near stigma, very broadly ovoid, 2–2.3 × ca. 2mm, rounded in cross section, 1-loculed, ovule on a heavy placenta, running on one side to apex of ovary; style absent; stigma acroscopic on ovary, pale dirty yellowish, ± reniform, ca. 1 × 0.8mm, very thin, scaberulose; male zone fusiform or fusiform-obconic, 2–3 × 1.2–1.5cm, proximal and/or distal limit irregular, flowers congested; stipe ca. 2mm; appendix 16–23cm, basal part 1–1.7cm in diam., distal part ca. 4mm in diam., narrowly fusiform, upper half tail-like and horizontal, flexed or nearly erect, apex obtuse, all ± cream colored with a faint bright greenish hue, base with flattened staminodes separated by shallow grooves, distally diminishing, remainder glabrous; male flowers consisting of ca. 4 stamens; stamens 1.5–1.8mm; filaments whitish, ca. 0.3mm, basally connate; anthers dark pink to purplish, 1.2–1.5 × ca. 1mm, truncate, pores elongate, apical; pollen irregular, in tetrads, psilate to verrucate.
    Habitat
    Secondary forests.
    Vernacular
    hong he mo yu

    Distribution

    Native to:

    China South-Central, Vietnam

    Amorphophallus hayi Hett. appears in other Kew resources:

    First published in Blumea 39: 258 (1994)

    Accepted by

    • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.
    • 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