Daemonorops korthalsii

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Daemonorops
(deh-mohn-OHR-ohps)
korthalsii (kohr-thalz'-ee)
161032z.jpg
Image-plantillustrations.org.
Scientific Classification
Genus: Daemonorops
(deh-mohn-OHR-ohps)
Species:
korthalsii (kohr-thalz'-ee)
Synonyms
None set.
Native Continent
Asia
Asia.gif
Morphology
Habit: Clustering
Leaf type: Pinnate
Culture
Survivability index
Common names
Wi Taram (Ib.)

Habitat and Distribution

Daemonorops korthalsii is endemic to Borneo. Widespread throughout the lowlands of
Poring, Sabah, Malaysia. Photo by Dr. John Dransfield, Royal Botanic Gardens, Kew/Palmweb.
Brunei. Elsewhere widespread throughout Borneo. (J. Dransfield. 1997)/Palmweb.

Description

Clustering moderately robust, climbing rattan palm to 15 m; stem without sheaths to 15 mm in diam., with sheaths to 30 mm in diam., internodes to 12 cm or more. Leaf sheaths dull green, rather sparsely and evenly armed with black spines to 30 mm, tending to be rather uniform in length in any given plant, deciduous brown indumentum abundant on young sheaths, spines around the sheath mouth erect and larger than the rest but generally rather few in number; knee conspicuous, armed as the rest of the sheath; ocrea inconspicuous. Leaf cirrate, to 3 m including the petiole to 50 cm and cirrus to 1 m; petiole evenly armed with scattered spines on the upper surface and sometimes with a row of larger regular spines on either edge; leaflets about 60 on each side of the rachis, neatly and regularly arranged, the longest to 35 × 1.5 cm, armed with bristles on 3 nerves on the upper surface, usually rather densely bristly on the undersurface. Inflorescences pendulous, to 40 cm, cylindrical in bud, primary bract quickly falling at anthesis, armed with grouped triangular spines to 5 mm; female rachillae to 6 cm long, usually stiff and ± divaricate, bearing inconspicuous bracts; male rachillae very slender to 3 cm long. Mature fruit ovoid to somewhat oblong, to 15 × 10 mm, covered in about 18 vertical rows of pale brown scales (greenish when immature). Seed ovoid, somewhat flattened on two sides; endosperm deeply ruminate. Seedling leaf pinnate with about 6 leaflets on each side of the rachis. (J. Dransfield. 1997)/Palmweb. Editing by edric.

D. korthalsii is a member of the complex of rattans related to D. hystrix (Griff.) Mart. - a complex which has proved to be taxonomically difficult. D. korthalsii is perhaps most distinctive in the scattered spines on the sheath and the relatively few spines around the sheath mouth. It is found in lowland and hill mixed dipterocarp forest at elevations up to 700 m above sea level. (J. Dransfield. 1997)/Palmweb.

Culture

Comments and Curiosities

Etymology: P. W. Korthals, 1807-92, Dutch botanist. (J. Dransfield. 1997)

Uses: Not specifically known, but the cane appears to be of medium quality. (J. Dransfield. 1997)


External Links

References

Phonetic spelling of Latin names by edric.

Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.

Special thanks to Palmweb.org, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.

Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).

Dransfield, J.1997. The Rattans of Brunei Darussalam. Ministry of Industry and primary Resources, Brunei Darussalam.


Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.

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