Araceae

Mangonia Schott

First published in Oesterr. Bot. Wochenbl. 7: 77 (1857)
This genus is accepted
The native range of this genus is S. Brazil to Uruguay.

Descriptions

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

Distribution
S. Brazil to Uruguay.
General Description
HABIT : seasonally dormant small herbs, tuber depressed-globose, deeply embedded in soil. LEAVES : few to several. PETIOLE : sheath long. BLADE : linear-elliptic or broadly ovate-elliptic to oblong-sagittate; primary lateral veins pinnate, few, running into margin, higher order venation reticulate. INFLORESCENCE : solitary, appearing before the leaves. PEDUNCLE : fairly long, mostly subterranean. SPATHE : erect, not constricted, lower part convolute into subcylindric tube, blade lanceolate to oblong, erect, gaping. SPADIX : subequal to spathe, female zone short, densely flowered, male zone less densely to laxly flowered especially in basal portion, either contiguous with female or separated by short ± naked axis, apical third to half of spadix more densely flowered and covered with sterile male flowers. FLOWERS : unisexual, perigone absent. MALE FLOWER : 2-5-androus, stamens with filaments connate, forming stipitate or sessile synandrium, anthers free, connective inconspicuous, thecae ellipsoid to globose, dehiscing by a narrow slit or apical pore. STERILE MALE FLOWERS : synandrode stipitate, consisting of 3-5 subcapitate, basally connate staminodes. POLLEN : inaperturate, ellipsoid, medium-sized (40 x 25 µm.), exine areolate to subrugulate. FEMALE FLOWER : gynoecium surrounded by whorl of 3-4 clavate-spathulate staminodes, ovary globose to ovoid, 2-3-locular, ovules 2 per locule, anatropous, funicle short, placenta axile in upper part of septum, style distinct, narrower than ovary, stigma 3-lobed or discoid, broader than style, concave centrally. BERRY : depressed-globose, in dense, subglobose to shortly cylindric infructescence. SEED : ellipsoid, somewhat compressed, testa smooth, embryo and endosperm unknown.
Habitat
Subtropical gallery forest; geophytes, stony, well drained soils, flat areas, slopes near water courses.
Diagnostic
Small, seasonally dormant tuberous herbs; leaf bade entire, linear to subsagittate, fine venation reticulate; spadix free, with a terminal appendix of synandrodes; flowers unisexual, perigone absent; ovules anatropus, 2 per locule.
[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

  • 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 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