Arecaceae
Butia

Butia purpurascens Glassman

First published in Principes 23: 67 (1979)
This species is accepted
The native range of this species is Brazil (SW. Goiás, W. Minas Gerais). It is a shrub or tree and grows primarily in the seasonally dry 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: low confidence
[AERP]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/38463/10120736

Conservation
VU - vulnerable
[IUCN]

Diagnostic
Palma 1.2-4 m alta. Folia aequaliter pinnatisecta petiolo non dentato rachidi 84-122 em longa pinnis utrimque 52-58. Spatha spadix flo res fructus purpuraseens. Spathae pars inflata non plicata 71-80 em longa 8-9 em lata. Flores masculi inferiores 6-7 mm longi superiores 4-4.5 mm longi; flores feminei 5-6 mm longi 4.5-5.0 mm lati. Fructus 2.3-2.9 em longus 1.0-1.3 em in diam.
General Description
Small trees 1.2-4 m tall, about 15 em in diam.; sheathing leaf base and petiole not clearly separated, combined length of about 4.9 cm; margins of petiole densely fibrous on lower half, becoming less fibrous toward base of rachis, not armed with teeth or spines; rachis of leaf 84-122 cm long; pinnae 52-58 on each side, more or less evenly spaced, middle ones 44-60 em long, 1.6-1.8 cm wide, with long-acuminate, asymmetrical tips; expanded part of spathe frequently purplish, 71-80 em long, 8-9 em wide, smooth or striate, peduncular part 30-37 cm long; branched part of spadix frequently purplish, 60-64 em long, peduncular part 41-48 em long, rachillae about 50 or more, each 23-26 cm long; pistillate flowers more or less globose, frequently purplish, 5-6 mm long, 4.5-5 mm in diam sepals and petals about equal in size; staminate flowers frequently purplish, lower ones 6-7 mm long, with prominent pseudopedicel and calyx 2-4 mm long, upper ones 4-4.5 mm long with calyx 1.5-2.5 mm long; fruit ovoid, usually purplish. 2.3-2.9 em long, 1.0-1.3 em in diam., beak 4-5 mm long, persistent perianth 7-8 mm high, locules 1-2, mature seeds not seen.
Distribution
At present, only known from cerrados in the state of Goias.
Vernacular
None recorded.
[PW]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • 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