Pogonotium moorei J.Dransf., Principes 26: 174 (1982)

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Distribution

Map uses TDWG level 3 distributions (http://www.nhm.ac.uk/hosted_sites/tdwg/geogrphy.html)
Borneopresent (World Checklist of Arecaceae)B
A very rare palm known only from G Gaharu on the border with Kalimantan in the 1st Division; endemic. (J. Dransfield, The Rattans of Sarawak. 1992)A

Discussion

  • P. moorei is so far known only from a few individuals observed near the summit of G Gaharu at c. 600m altitude; it grows in very mossy, submontane kerangas forest on sandstone. It is very inconspicuous and could be passed over as a seedling of a species of Calamus or Daemonorops. From the other two species of Pogonotium it is immediately distinguishable by the very few leaflets and the top-shaped fruit. (J. Dransfield, The Rattans of Sarawak. 1992)A

Etymology

Description

  • Solitary, low, short-stemmed erect rattan, not exceeding 2 m tall. Stem without sheaths c. 10 mm diam., with sheaths c. 18 mm diam., internodes c. 5 cm long. Sheaths armed with abundant, close, oblique and horizontal combs of black or straw-coloured spines, 1-22 mm long and abundant pale brown tomentum; ear-like processes c. 8.5 x 1.5 cm, gradually tapering, convex, armed as the sheath on the outer surface, the inner surface unarmed. Leaf to 1.1 m, ecirrate or with a minute vestige of a cirrus; petiole to 50 cm, scabrid, armed with scattered reflexed spines; leaflets few, distant, regularly arranged, c. 9 on each side of the rachis, ± divaricate, the longest c. 32 x 2.5 cm, the apical pair much smaller, the margins sparsely bristly, otherwise bristles lacking; young leaves tinged pink. Inflorescence, only female known, very small and inconspicuous, held erect between the auricles; peduncle very short or absent, the prophyll c. 12 cm long, split opposite the leaf sheath (?always), hairy and bearing abundant spines and spicules as the sheath; other bracts small. Flowers small, glabrous. Mature fruit obpyriform, c. 13 x 9 mm, tipped with a short beak and covered in 15 - 16 vertical rows of pinkish-brown, scarcely channelled scales. Seed ellipsoid, c. 11 x 7 mm, the sarcotesta thin. Seedling leaf with 2 very small widely diverging leaflets tipped with bristles (Fig. 98). (J. Dransfield, The Rattans of Sarawak. 1992)A