1. Family: Araceae Juss.
    1. Lagenandra Dalzell

      1. This genus is accepted, and its native range is Indian Subcontinent.

    [CATE]

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

    General Description
    Laticifers absent in foliage leaves but present in stem, roots and cataphylls (Sivadasan, pers. comm.). HABIT : small to medium-sized evergreen herbs, rhizome creeping, thick, rarely stoloniferous ( L. nairii). LEAVES : several, cataphylls conspicuous. PETIOLE : sheath fairly long. BLADE : ptyxis involute, ovate, lanceolate, elliptic to almost linear, usually glabrous (hairy in L. nairii), coriaceous; primary lateral veins pinnate, weakly differentiated, running into inconspicuous marginal vein, secondary laterals parallel to primaries, higher order venation transverse-reticulate. INFLORESCENCE : solitary. PEDUNCLE : short, rarely long ( L. bogneri), erect at anthesis, deflexed in fruit. SPATHE : marcescent, very thick-walled, outer surface green to purple, completely smooth or very warty on blade, margins basally connate into cylindric or ellipsoid tube (“kettle”), tube sometimes narrowing apically within (by thickening of walls, thus not apparent from outside), inner surface of lower region usually longitudinally furrowed, mouth of tube occluded by transverse, centrally perforated septum with separate transverse flap situated immediately below septum and partly or completely covering male zone of spadix, blade straight or twisted, opening only slightly by narrow longitudinal or spiral slit, or widely gaping, apex acute to long-caudate, inside smooth, uniformly warty or with warts in transverse bands, or covered with shortly branched processes, distinct “collar” around mouth of kettle present or absent. SPADIX : axis slender, female zone usually with 3-5(-7) spirals of gynoecia, rarely in pseudowhorl ( L. nairii) or true whorl ( L. gomezii), separated from male zone by slender naked axis, male zone cylindric to ellipsoid, terminal appendix small, conoid, apically adnate to spathe behind spathe flap; olfactory bodies present or absent above female flowers. FLOWERS : unisexual, perigone absent. MALE FLOWER : 1(-2)-androus, anthers sessile or with short thick filament, apex somewhat excavated with prominent thickened margin, connective inconspicuous, thecae opposite, each narrowed into an erect horn usually exceeding, rarely equalling thickened margin and dehiscing by apical pore. POLLEN : inaperturate, ellipsoid to ellipsoid-oblong, medium-sized (mean 36 µm., range 35-38 µm.), exine perfectly psilate. FEMALE FLOWER : gynoecium free, broadly ellipsoid to globose, ovary 1-locular, ovules 1-12(-15), orthotropous, tapering towards micropyle, funicle short, bearing very long trichomes, placenta basal, stylar region thick, usually short, rarely long, stylar region and upper part of ovary often conspicuously warty, stigma discoid to hemispheric, sometimes oblique, relatively broad. FRUIT : ± capsular, free, obovoid to prismatic-ellipsoid, often apically warty, rarely smooth, at maturity pericarp splitting and revolute basally to release seeds, infructescence usually globose, deflexed, prostrate. SEED : ellipsoid to narrowly ellipsoid or subcylindric, testa longitudinally costate, dark brown, embryo elongate, endosperm copious.
    Diagnostic
    Helophytes, rarely rheophytes, with thick creeping rhizome; leaf blade simple, ovate to almost linear, fine venation transverse-reticulate; spathe tube with connate margins; spadix entirely enclosed in spathe tube; flowers unisexual, perigone absent. Differs from Cryptocoryne in having female flowers spirally arranged (pseudo-whorl in Lagenandra nairii, whorled in Lagenandra gomezii ) and free; spathe tube "kettle" with connate margins (containing spadix) occupying entire spathe tube; spathe blade usually opening only slightly by a straight or twisted slit; berries free, opening from base; leaf ptyxis involute.
    Habitat
    Tropical humid forest; usually helophytes, rarely rheophytes, streams, marshes.
    Distribution
    Indian Subcontinent.

    Images

    Distribution

    Native to:

    Assam, Bangladesh, India, Sri Lanka

    Lagenandra Dalzell appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Mayo [728] 58101.000

    First published in Hooker's J. Bot. Kew Gard. Misc. 4: 289 (1852)

    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.

    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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.

    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