Daemonorops longistipes Burret, Notizbl. Bot. Gart. Berlin-Dahlem 15: 798 (1943)

Primary tabs

http://media.e-taxonomy.eu/palmae/photos/palm_tc_55769_4.jpg

Distribution

Map uses TDWG level 3 distributions (https://github.com/tdwg/wgsrpd)
Borneo present (World Checklist of Arecaceae)B
Abundant in lower montane forest G. Pagon and Bt. Retak. Elsewhere in Sabah and Sarawak. Endemic to Borneo. (Dransfield, J. 1997: The Rattans of Brunei Darussalam)A

Discussion

  • This species is one of the most conspicuous rattans of montane forest in the headwaters of the Temburong River at altitudes of 1,200-1,800 m above sea level. It is variable, some forms being very slender. It is closely related to D. korthalsii and other members of the complex of D. hystrix. (Dransfield, J. 1997: The Rattans of Brunei Darussalam)A

Etymology

  • With a long stalk (Dransfield, J. 1997: The Rattans of Brunei Darussalam)A

Uses

  • Produces a strong cane; it is not known whether it is of any commercial significance. (Dransfield, J. 1997: The Rattans of Brunei Darussalam)A

Description

  • Slender clustering to moderate montane rattan climbing to 10 m, usually less, rarely flowering when ± stemless; stem without sheaths to 10 mm diam., with sheaths to 30 mm diam., internodes short, generally not exceeding c. 8 cm. Sheaths yellowish-green, covered with dark brown indumentum and very abundant black spines to 1-20 mm, in short lateral groups, the spines fragile and breaking off, leaving short stubs on old sheaths, spines around the sheath mouth erect and papery, to 6 cm; knee well developed. Leaf cirrate to 2.5 m long (much less in slender forms) including cirrus to 80 cm and petiole to 40 cm; petiole armed with horizontal spines to 1.5 cm; leaflets regularly arranged, to c. 45 on each side of the rachis, the longest to 35 × 2 cm, armed with scattered bristles or unarmed on the upper surface, armed with a row of bristles along the main vein beneath. Inflorescences arching, to 30 cm, with a peduncle 5-15 cm long; bracts closely tubular at first, splitting and falling at anthesis; male rachilla rusty tomentose to 1 cm, female similarly tomentose, to 8 cm. Mature fruit ovoid or depressed globose, to 13 × 15 mm, covered in 15-21 vertical rows of reflexed straw-coloured scales. Seed globose, c. 10 mm diam.; endosperm ruminate. Seedling leaf not known. (Fig. 15). (Dransfield, J. 1997: The Rattans of Brunei Darussalam)A

Materials Examined

  • TEM: Amo, Wong 1914; Amo, Bt. Pagon, Wong 1756; Amo, Bt. Retak, Wong 789. (Dransfield, J. 1997: The Rattans of Brunei Darussalam)A

Bibliography

    A. Dransfield, J. 1997: The Rattans of Brunei Darussalam
    B. World Checklist of Arecaceae