1. Family: Araceae Juss.
    1. Amydrium Schott

      1. This genus is accepted, and its native range is Indo-China to Papua New Guinea.

    [CATE]

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

    General Description
    Trichosclereids sparsely present in vegetative parts (Seubert, pers. comm.), more abundant in style (Carvell 1989). HABIT : evergreen herbs, often very robust, stem climbing or prostrate, usually producing long flagellae with reduced cataphylls. LEAVES : many, often remote from one another. PETIOLE : geniculate apically, sheath usually less than half as long as petiole. BLADE : ovate-cordate or pandurate-trilobed or pinnatisect, sometimes with ± numerous round to oval perforations near midrib; primary lateral veins pinnate, running into marginal vein, higher order venation reticulate. INFLORESCENCE : 1-several in each floral sympodium. PEDUNCLE : erect, subequal or half as long as petiole. SPATHE : conchiform to ovate, apiculate, sometimes reflexed at anthesis and then deciduous. SPADIX : sessile to long-stipitate, sometimes very short. FLOWERS : bisexual, perigone absent. STAMENS : 4, filaments short, broadly linear, anthers equalling or shorter than filaments, thecae ovoid, extrorse, dehiscing by longitudinal slit. POLLEN : fully zonate, hamburger-shaped, medium-sized (mean 39 µm., range 38-41 µm.), exine either densely and minutely punctate in one half and virtually psilate in other, or uniformly foveolate-fossulate, apertural exine psilate or obscurely verrucate. GYNOECIUM : obpyramidal or obconoid, tetragonal, ovary 1-locular, ovules 2, anatropous, funicle short, placenta near base of deeply intrusive septum, style broader than ovary, slightly prominent centrally below stigma, otherwise ± truncate, stigma small, hemispheric. BERRY : subglobose, truncate to domed at apex, white ( A. medium , A. humile) or orange-red ( A. magnificum , A. zippelianum) when ripe. SEED : subglobose to heart-shaped, testa smooth, glossy, embryo curved and partly green, endosperm present (E. Seubert 1993).
    Habitat
    Tropical humid forest; climbing hemiepiphytes on tree trunks or creeping on forest floor (A. humile ).
    Diagnostic
    Climbing hemiepiphytes on tree trunks or creeping on forest floor; trichosclereids only sparsely present in vegetative parts; higher order leaf venation completely reticulate; flowers bisexual, ovary 1-locular, placenta 1, intrusive parietal, ovules 2; seeds subglobose to heart-shaped. Notable among Monsteroid genera for the combination of reticulate fine venation and absence of perigone.

    Images

    Distribution

    Native to:

    Borneo, China South-Central, China Southeast, Hainan, Jawa, Malaya, Maluku, Myanmar, New Guinea, Philippines, Sulawesi, Sumatera, Thailand, Vietnam

    Amydrium Schott appears in other Kew resources:

    First published in Ann. Mus. Bot. Lugduno-Batavi 1: 127 (1863)

    Accepted by

    • 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