Araceae

Alloschemone Schott

First published in Gen. Aroid., App.: 99 (1858)
This genus is accepted
The native range of this genus is N. Brazil to Bolivia.

Descriptions

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

Diagnostic
Climbing hemiepiphytes with abundant trichosclereids; stem epidermis becoming distincly corky and longitudinally furrowed with age; adult leaf blade pinnatifid, flowers bisexual. Differs from Monstera in that it has a 1-locular ovary, ovule solitary, amphitropous with basal placentation.
Habitat
Tropical humid forest; climbing hemiepiphytes.
General Description
HABIT : evergreen climbing herbs, stem epidermis becoming distinctly corky and longitudinally furrowed with age. LEAVES : large, juvenile leaves unknown. PETIOLE : geniculate apically, thickened at base, sheath short. BLADE : pinnatifid, subcordate, lobes (pinnae) acute, falcate, 4-6 per side, primary lateral veins 1 per lobe (pinna), secondary laterals ± parallel-pinnate, higher order venation reticulate. INFLORESCENCE : solitary. PEDUNCLE : shorter than petiole. SPATHE : ovate-cymbiform, deciduous. SPADIX : stipitate, cylindric, apex obtuse. FLOWERS : bisexual, perigone absent. STAMENS : 4, filaments flattened, free or connate, shorter than ovary, thecae oblong, dehiscing laterally by oblique, apical, pore-like slit. POLLEN : not fully zonate, ellipsoid, medium-sized (mean 46 µm), exine shallowly foveolate. GYNOECIUM : ovary prismatic, 1-locular, with abundant locular mucilage, ovule 1, amphitropous, funicle with trichomes, placenta basal, stylar region densely packed with trichosclereids, stigma sessile, elliptic. BERRY : unknown. SEED : unknown.
Distribution
N. Brazil to Bolivia.
[CATE]

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 Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0