Arecaceae
Calamus

Calamus moorei (J.Dransf.) W.J.Baker

First published in Phytotaxa 197(2): 151 (2015)
This species is accepted
The native range of this species is Borneo (Sarawak). It is a liana and grows primarily in the wet tropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Distribution
A very rare palm known only from G Gaharu on the border with Kalimantan in the 1st Division; endemic.
General 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).
[PW]

Uses

Use
Not known
[PW]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. 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