1. Family: Araceae Juss.
    1. Synandrospadix Engl.

      1. This genus is accepted, and its native range is Peru to N. Argentina.

    [CATE]

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

    Distribution
    Peru to N. Argentina.
    General Description
    HABIT : seasonally dormant herbs, tuber subglobose. LEAVES : several. PETIOLE : fairly long, with darker longitudinal striations, sheath long. BLADE : ovate-cordate to -emarginate, somewhat glaucous; primary lateral veins pinnate, running into inconspicuous marginal vein, higher order venation reticulate. INFLORESCENCE : 1, rarely 2 in each floral sympodium, appearing with leaves. PEDUNCLE : short. SPATHE : ovate-lanceolate, boat-shaped, unconstricted, persistent, convolute at base, gaping above, light green outside with dark longitudinal lines, inside purple and roughened, smelling of fungi. SPADIX : much shorter than spathe, subcylindric, obtuse, female zone partly or completely adnate to spathe, ± laxly flowered, separated from male zone by a few bisexual or sterile flowers, male zone longer, fertile to apex. FLOWERS : unisexual, perigone absent. MALE FLOWER : synandrium 4-5-androus, long-stipitate, stipe elongate-conoid, whorl of anthers apical or shortly overtopped by central pistillode, thecae oblong-elliptic, dehiscing by longitudinal slit. POLLEN : purple to pinkish, inaperturate, spherical to subspheroidal, medium-sized (mean 49 µm.), exine spinose. BISEXUAL FLOWERS : as for female but with whorl of 4-5 free stamens with flattened elongate-triangular filaments and thecae dehiscing as above. FEMALE FLOWER : gynoecium surrounded by 3-5 free, elongate-triangular, flattened, acute staminodes, ovary ovoid-globose, 3-5-locular, ovules 1 per locule, orthotropous, funicle distinct, placenta axile-basal, style attenuate, stigma discoid-subcapitate, slightly 3-5-lobed. BERRY : ± subglobose, 3-5- furrowed, 3-5-seeded, style persistent. SEED : rather large, ovoid to obnapiform, testa ± rough, embryo elongate, straight, endosperm copious.
    Diagnostic
    Seasonally dormant tuberous geophytes; leaves several; leaf blade ovate-cordate, fine venation reticulate; flowers unisexual, perigone absent; male flower a stipitate synandrium; female flowers surrounded by a whorl of free staminodes. Differs from Gorgonidium in entire, shallowly cordate leaf blade and synandria entirely connate with inconspicuous connectives.
    Habitat
    Subtropical dry thorn forest; geophytes in clearings or on stony ground in shade.

    Images

    Distribution

    Native to:

    Argentina Northwest, Bolivia, Paraguay, Peru

    Synandrospadix Engl. appears in other Kew resources:

    First published in Bot. Jahrb. Syst. 4: 61 (1883)

    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.

    Literature

    CATE Araceae
    • Royal Botanic Gardens, Kew 2008. World Checklist of Selected Plant Families.

    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