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

Primary tabs

no image available

Distribution

Map uses TDWG level 3 distributions (https://github.com/tdwg/wgsrpd)
Borneo present (World Checklist of Arecaceae)B
Confined to the lowlands of the eastern part of Sabah; endemic. (Dransfield, J. 1984: The Rattans of Sabah. Sabah Forest Records 13.)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. (Dransfield, J. 1984: The Rattans of Sabah. Sabah Forest Records 13.)A

Etymology

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

Uses

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

Bibliography

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