Arecaceae
Geonoma

Geonoma baculifera (Poit.) Kunth

First published in Enum. Pl. 3: 233 (1841)
This species is accepted
The native range of this species is N. South America to N. & NE. Brazil. It is a shrub or tree and grows primarily in the wet tropical biome.

Descriptions

General Description
Plants 2.3 (0.5-6.0) m tall; stems 1.6 (1.0-2.5) m tall, 1.6 (1.3-2.3) cm in diameter, solitary or clustered, canelike; internodes 4.1 (1.4-9.3) cm long, yellowish and smooth. Leaves 9 (6-11) per stem, undivided or irregularly pinnate, not plicate, bases of blades running diagonally into the rachis; sheaths 17.7 (11.0-30.0) cm long; petioles 18.0 (6.5-30.0) cm long, drying green or yellowish; rachis 56.2 (39.5?80.0) cm long, 4.2 (2.6-7.2) mm in diameter; veins raised and rectangular in cross-section adaxially; pinnae 2 (1-10) per side of rachis; basal pinna 55.4 (42.0-76.0) cm long, 17.2(6.7-33.0) cm wide, forming an angle of 20 (12-28)° with the rachis; apical pinna 28.8(14.0-39.5) cm long, 19.5(12.5-40.0) cm wide, forming an angle of 25 (20-35)° with the rachis. Inflorescences branched 1-2 orders; prophylls and peduncular bracts not ribbed with elongate, unbranched fibers, flattened, persistent; prophylls 24.2 (12.7-33.0) cm long, not short and asymmetrically apiculate, the surfaces ridged with close, equal, parallel, non-dividing ridges, scarcely tomentose between the ridges, without unequally wide ridges; peduncular bracts 23.6 (13.5-31.0) cm long, well-developed, inserted 2.8(1.2-7.0) cm above the prophyll; peduncles 29.1 (13.3-44.2) cm long, 4.0 (2.1-8.4) mm in diameter; rachillae 6(3-11), 16.7 (4.0-31.0) cm long, 3.2 (2.2-4.3) mm in diameter, the surfaces without spiky, fibrous projections or ridges, drying brown, with faint to pronounced, short, transverse ridges, not filiform and not narrowed between the flower pits; flower pits spirally arranged, glabrous internally; proximal lips without a central notch before anthesis, not recurved after anthesis, not hood-shaped; proximal and distal lips drying the same color as the rachillae, not joined to form a raised cupule, the proximal lip margins overlapping the distal lip margins; distal lips well-developed; staminate and pistillate petals not emergent, not valvate throughout; staminate flowers deciduous after anthesis; stamens 6; thecae diverging at anthesis, inserted almost directly onto the filament apices, the connectives bifid but scarcely developed; anthers short and curled over at anthesis; non-fertilized pistillate flowers persistent after anthesis; staminodial tubes crenulate at the apex, those of non-fertilized flowers projecting and persistent after anthesis; fruits 10.6 (8.2-12.8) mm long, 7.8 (6.1-9.6) mm in diameter, the bases with a prominent, asymmetric stipe, the apices not conical, the surfaces not splitting at maturity, with fibers emerging to give spiny fruits, not bumpy, not apiculate; locular epidermis with operculum, smooth, with pores.
Distribution
From 6°50'N-7°47'S and 45°30'-66°45'W in the central and northeastern Amazon region of Brazil, the Guianas, and Venezuela at 192(7-725) m elevation in lowland rainforest. Galeano and Bernal (2010) report this species from extreme eastern Colombia in Amazonas and Guainía.
[PW]

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: not threatened. Confidence: confident
[AERP]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Nativa en Colombia; Alt. 80 - 150 m.; Amazonia.
Morphology General Habit
Arbusto, palma solitaria
Conservation
Preocupación Menor
[CPLC]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/44392519/44526517

Conservation
LC - least concern
[IUCN]

Distribution
Biogeografic region: Amazonia. Elevation range: 80–150 m a.s.l. Native to Colombia. Colombian departments: Amazonas, Guainía, Vichada.
Habit
Shrub, Solitary palm.
Conservation
IUCN Red List Assessment (2021): LC. National Red List of Colombia (2021): LC.
[UPFC]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Catálogo de Plantas y Líquenes de Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. 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 2024. 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

  • Useful Plants and Fungi of Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0