1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus pumilus (Van Valk.) W.J.Baker

        This species is accepted, and its native range is Borneo (Kalimantan).

    [PW]
    General Description
    Habit - Climbing; stems clustering; not branching in the forest canopy; not dying after flowering. Plants dioecious. Leaf-sheath - Stem and sheath together 1.35-1.65 cm; flagellum absent; knee absent. Sheath surface lacking small horizontal ridges; without hairs or minute spines; greenish-brown; scales on surface lacking. Leaf sheath with abundant spines; spines persistent; randomly orientated; of different sizes; the larger spines laminar; the longest, excluding those at the mouth of the sheath 1-3cm. Spines straight; in life black; with smooth margins; the bases not swollen or crescent-like. Spines mostly grouped; where grouped together irregularly arranged, or arranged in partial whorls or combs. Spines around the leaf sheath mouth much longer than on the rest of the sheath. Ocrea - Absent. Leaf-stalk - Present, usually greater than 3cm; armed; irregularly. Large well-defined auricles absent; blotches on petiole absent. Leaves - Cirrate; rachis armed; not hairy. Undersurface of newly emerged leaflets same as upper surface. Scales absent from leaflet surfaces. Leaflets sessile; 11 to 39 on each side of rachis; regularly spaced and parallel; held in a single plane; lanceolate; the leaflet tip acute. Longest leaflet 24.3-29.7 cm; not exceeding 2cm wide; with bristles abaxially only, (few or none above); the margins with no or very few bristles. Short, dark or dark-tipped up to 5mm long. Leaflets scarcely plicate; the veins not radiating; midrib not raised and prominent. Lowermost leaflets not reflexed across the stem. Apical leaflets not or scarcely joined; not less than 4 cm long. Inflorescence - Inflorescence axis erect along the axis, without clawed spines on the primary bracts; not rooting at its tip; much shorter than the leaves; the first bract not enclosing the inflorescences at anthesis. Partial inflorescence present; bracts at the base of the partial inflorescences split to the base and falling off before the flowers open. Rachilla lacking an enclosing bract; not at all pressed against the subtending bract. Flowers arranged in two rows. Female rachillae not congested; without conspicuously stalked flower cups. Bracts on the rachillae not net-like.
    Conservation
    Endangered.
    Distribution
    Recorded for East Kalimantan.

    Distribution

    Calamus pumilus (Van Valk.) W.J.Baker appears in other Kew resources:

    First published in Phytotaxa 197(2): 148 (2015)

    Sources

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Palmweb - Palms of the World Online
    Palmweb 2011. Palmweb: Palms of the World Online. Published on the internet http://www.palmweb.org. Accessed on 21/04/2013
    Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License http://creativecommons.org/licenses/by-nc-sa/3.0