Family:
Araceae Juss.

Culcasia linearifolia Bogner

This species is accepted, and its native range is SW. Cameroon to NW. Gabon.

[CATE]

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

Diagnostic

Planta terrestris non scandens, erecta, radicibus rigidis; petioli breves (2 – 2.5 cm longi), vagina apice acuta; lamina foliorum linearis interdum subobliqua, 16 – 24 cm longa et 1.8 – 3 cm lata, basi cuneata, apice acuta; baccae depresse globulatae; semina ovoidea vel ellipsoidea, testa scabra. Culcasia linearifolia differt a speciebus ceteris generis lamina foliorum lineari.

Distribution

The species is known so far from NW Gabon and SW Cameroon.


Further specimens seen. —

Gabon: Cristal Mountains, about 3 km along the road from Tschimbélé to Kinguélé, alt. c. 550 m, herb growing on forest floor in old secondary forest, fruits orange, globose, flattened above, 13 ×16 mm, leaves thick leathery, dull dark green above, beneath dull, much paler green, 14.12.1989 (fruiting), J. J. de Wilde & al. 10051 (WAG). Cameroon: Colline Ongogo près Mbanga, km 81 route Kribi–Nkolbewa, prés sous-préfecture Akom, fruits, Avril, Letouzey 9480 (P, YA).

General Description

Plant terrestrial, stem upright, 12 – 18 cm long and 0.3 – 0.4 cm in diam., with several very strong, straight, wire-like roots orientated downwards, 10 – 15 cm long and c. 2 mm in diam., divided after reaching the forest floor into ± horizontally oriented roots of second order c. 1 mm in diam., and further thinner third order roots. Internodes 2 – 3 cm long. Leaves several, 7 – 8; petiole 2 – 3 cm long and 1.2 – 1.5 mm in diam., above the sheath 0.5 – 1(– 1.4) cm long, sheath 2 – 2.5 × 3 – 3.5 mm, ending in a free, acute apex of 3 – 4 mm length; leaf blade very narrowly oblong to linear, sometimes slightly oblique, leathery, dull dark green above and much paler green underneath (after the collector’s notes), (14 –)16 – 24 × (1.2 –)1.8 – 3 cm, base cuneate, apex acute and often slightly curved; venation reticulate, midvein strong, primary lateral veins 3 – 4 on each side and running towards the apex, second order veins thinner, reticulate, third order veins very thin and inconspicuous. Inflorescence unknown. Infructescence ± flat with only a few fruits, without any spathe remnants; peduncle c. 3 cm long and 1 – 1.2(– 1.5) mm in diam.; berries few, only 2 – 4, globose to depressedglobose, orange, 0.8 – 1.2 cm in diam., with persistent stigma remnant of c. 1.5 mm in diam., stigma sessile; seeds 1 – 3 in each berry, ellipsoid to ovoid, 6 – 7 mm long and c. 5 mm in diam., testa scabrous and dark coloured.

Native to:

Cameroon, Gabon

Culcasia linearifolia Bogner appears in other Kew resources:

First published in Willdenowia 41: 59 (2011)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6. Scientific Data 8: 215.

  • 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 2022. 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 2022. 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