Chamaedorea pedunculata Hodel & N.W.Uhl

First published in Principes 34: 131 (1990)
This species is accepted
The native range of this species is Costa Rica. It is a shrub and grows primarily in the wet tropical biome.

Descriptions

General Description
Habit: solitary, erect or decumbent, to 2-3 m tall. Stem: 2.5 cm diam., green, ringed, internodes 7.5 cm long. Leaves: 4-6, erect-spreading, pinnate; sheath 25 cm long, splitting opposite petiole and obliquely long-open, clasping tightly only in basal 1/2; petiole 30-35 cm long, slightly grooved and green above, rounded and pale-banded below; rachis 1 m long, slender and attenuate apically, sharply angled and green above, rounded and green below; pinnae 7-8 on each side of rachis, lower middle the largest, these to 35-37 x 12-13 cm, becoming progressively smaller toward apex of rachis, broadly rhombic-lanceolate, regularly arranged, opposite or subopposite, slightly sigmoid, ± downward-cupped, long-acuminate with drooping tips, narrowly contracted basally with 8-10 nerves, these not very prominent above, more prominent with an equal number ofsecondary nerves below. Inflorescences: interfoliar, erect, becoming spreading in flower or fruit, long-pedunculate; peduncle to I m long or slightly more, 2-2.5 cm wide at base, 1 cm wide at apex, green or pale in flower, orange in fruit; bracts 7-8, tightly sheathing, obliquely open apically, drying brown by anthesis; rachises 6-10 cm long, green in flower, red-orange in fruit. Staminate with 20 rachillae, these to 30 cm long, slender, pendulous, green. Pistillate with 12-15 rachillae, these to 20-25 cm long, spreading, greenish yellow in flower, red-orange in fruit. Flowers: Staminate in fairly dense spirals but not contiguous in bud, 3 x 2.5 mm, depressed-diamond-shaped, greenish yellow; calyx low, green; petals valvate, connate apically and basally and apically adnate to pistillode and corolla opening by lateral slits, longitudinally striate-nerved. Pistillate not seen. Fruits: 7-8 mm diam., obovoid-g1obose, black.
Biology
Dense, wet forest on the Pacific slope; 1,000 m elevation.
Distribution
COSTA RICA. Puntarenas.
[PW]

Sources

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 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 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 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