Araceae
Stylochiton

Stylochiton kornasii Malaisse & Bamps

First published in Bull. Jard. Bot. Natl. Belg. 63: 72 (1994)
This species is accepted
The native range of this species is SE. DR Congo. It is a rhizomatous geophyte and grows primarily in the seasonally dry tropical biome.

Descriptions

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

Distribution
Southeast Democratic Republic of Congo.
General Description
Perennial plant, erect, with flowers partly underground; tuberous rhizome, initially ± vertical then bent down, ca. 0.5 cm thick and reaching 5-6 cm long, with numerous fleshy roots (reaching 4 mm thick), and ± spindle shaped. LEAF: Petiole 1.5-4 cm long, sheathing on the peduncle for 4/5 its length; the superior part is flattened and 3 mm wide; leaf blade is elliptic, cordate at the base, obtuse and apiculate at the apex, 7.5-9 cm long and 4.5-5.5 cm wide, the midrib is strongly thickened for a good part of its length on the under side, the lateral veins strongly ascending and converging at the apex. Reticulation apparent on the underside. INFLORESCENCE1-2, appear at the same time as young leaves; cataphylls 2-3, surrounding the base of the peduncle, 2-3.5 cm long and 0.8-0.9 cm wide, with purple spots, and many orange punctations and incrustations (cystoliths?) of white lines. Peduncle 1.5-2.5 cm long and 2.5-3 mm thick. Spathe cone shaped, with a 1 cm long lateral slit at the apex and topped by a small apicule. Spadix with female flowers arranged in a basal verticil, 6 mm diameter and 5 mm high, topped by a sterile part of the axis for 3-4 mm, then male flowers in a ± cylindrical form, 22 mm high and 5 mm diameter. Male flowers numerous, the perigone is ovoid, 0.8 mm diameter and 1 mm tall, 3-6 lobes on the top, densely papillose on the outside, decorated with red crustations on the inside; stamens 3, anthers club shaped, 2.3 mm long, 0.7 mm wide, entirely papillose , 2 elliptic pores at the apex, filaments 1.2 mm long, glabrous; pistillode present in some flowers and absent in others. Flowers female 6, perigone ± pyriform and slightly angular, 2 mm diameter and 4 mm tall, densely papillose on the top 2/3 and decorated in reddish linear incrustations on the lower 1/3; ovary 6-ovulate; style lateral and oblique, 1.5 mm long, the end of the stigma is irregularly broad, 1.2-1.7 mm diameter. INFRUCTESCENCE unknown
[CATE]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • 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.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. 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 2026. 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