Calamus elopurensis J.Dransf., Kew Bull. 36: 787 (1982)

Primary tabs

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Distribution

Map uses TDWG level 3 distributions (http://www.nhm.ac.uk/hosted_sites/tdwg/geogrphy.html)
Borneo present (World Checklist of Arecaceae)B
Confined to the lowlands of the eastern part of Sabah; endemic. (J. Dransfield, The Rattans of Sabah. Sabah Forest Records 13.. 1984)A

Discussion

  • C. elopurensis is a striking rattan of the alluvial flats of the lowlands of Sabah; it is nowhere very abundant. It may easily be distinguished by the distinctive leaf with conspicuous petiole and few large leaflets crowded at the rachis tip. (J. Dransfield, The Rattans of Sabah. Sabah Forest Records 13.. 1984)A

Etymology

  • From Elopura, the old district name for the Sandakan area (J. Dransfield, The Rattans of Sabah. Sabah Forest Records 13.. 1984)A

Uses

  • Not known: probably with qualities similar to those of C. javensis. (J. Dransfield, The Rattans of Sabah. Sabah Forest Records 13.. 1984)A

Description

  • Clustering slender rattan climbing to c 5 m only; stem without sheaths to 6 mm, with sheaths to 10 mm; internodes to 22 cm. Sheaths dull green, longitudinally striate, covered In grey indumentum, unarmed or with very few spines to 8 mm. Knee conspicuous, round, ± glabrous. Ocrea conspicuous, developed as a triangular limb to 7 cm opposite the petiole. Flagellum to 1 m. Leaf ecirrate to 60 cm including petiole,- petiole to 20 cm, sometimes much less, but always conspicuous, densely covered in grey floccose indumentum; leaflets dark green, usually 2 pairs only or 2 pairs and a single leaflet, or 3 pairs; terminal leaflet pair joined for c 5/6 their length forming a terminal flabellum to 35 x 10 cm; lateral leaflets usually close to the terminal pair, to 35 x 5 cm; young leaves pinkish. Male inflorescence to 1.5, m with 8 partial inflorescences, the first borne about 80 cm above the base; bracts with expanded limb to 16 x 1 cm bearing scattered spines; axis of partial inflorescence to 9 cm and rachillae to 12 x 0.2 cm, crimson when fresh. Female inflorescence known only in dead state, superficially similar to the male, with rachillae much shorter to 5 x 0.3 cm. Fruit not known. (Fig. 70) (J. Dransfield, The Rattans of Sabah. Sabah Forest Records 13.. 1984)A

Bibliography

    A. J. Dransfield, The Rattans of Sabah. Sabah Forest Records 13.. 1984
    B. World Checklist of Arecaceae