Arecaceae
Chrysalidocarpus

Chrysalidocarpus ovobontsira (Beentje) Eiserhardt & W.J.Baker

First published in Taxon 71: 1184 (2022)
This species is accepted
The native range of this species is NE. Madagascar. It is a tree 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]

Conservation
Critical. Only known from a single site, where less than ten individuals are known.
General Description
Solitary palm. TRUNK to 8-10 m, 13 cm diam., near crown 9 cm diam.; internodes 14 cm, near crown 2-2.5 cm; wood pink, with dense fibre-layer below bark. LEAVES spiral, 6, arching; sheath c. 62 cm, at crown 14 cm diam., green with dense brown and white scales; petiole c. 47 cm, green with dense white scales, proximally 6 x 5 cm, distally 5 x 4.5 cm, channelled with sharp edges; rachis 2.5-2.6 m, in midleaf 2.5 x 2.3 cm, green, waxy with sparse scattered scales; leaflets 68-69 on each side of the rachis, very regular, stiff, in 1 plane, the proximal 68-71 x 3.3-4.2 cm (sometimes with long pendulous reins), median 86-90 x 4.6-5.2 cm, dark green, glabrous. INFLORESCENCE interfoliar, arching with spreading rachillae, 170 x 90 cm, branched to 3 orders; peduncle 79 x 7 x 2 cm proximally, distally 7 x 4 cm; prophyll borne at 34 cm above the base of the peduncle, 56 cm x 14 cm, split very much on 1 side; peduncular bract deciduous, borne at 53 cm above the base of the peduncle; rachis with 22 branched and 19 unbranched first order branches, these proximally flattened, 4 x 1.7 cm; rachillae 10-18.5 cm, c. 6 mmacross. FLOWERS unknown. FRUIT green, 15-17 x 13-15 mm when fresh, 10 x 7 mm when dried. SEED 13-15 x 11-13 mm, rounded at the apex, pointed at the base, broader than wide, with sub-basal depression; endosperm slightly ruminate.
Diagnostic
inter species arborescentes foliolis regulariter dispositis endospermio ruminato inflorescentia interfoliacea pedunculo longo foliis spiraliter dispositis vagina folii hirsutissima distincta.
Distribution
Only known from the Mananara Biosphere Reserve.
Biology
Moist forest, steep mid slope, ultramafic soils with deep humus layer; c. 265 m.
Vernacular
Ovobontsira (Betsimisaraka).
[PW]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/38553/2877947

Conservation
CR - critically endangered
[IUCN]

Uses

Use
Not recorded.
[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/

  • 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