Arecaceae
Chrysalidocarpus

Chrysalidocarpus tsaratananensis (Jum.) Eiserhardt & W.J.Baker

First published in Taxon 71: 1185 (2022)
This species is accepted
The native range of this species is N. & NE. Madagascar. It is a shrub or tree and grows primarily in the wet tropical biome.

Descriptions

Biology
1000-1700 m.
Conservation
Uncertain. Not seen for more than seventy years, but this mountain has not been
Vernacular
Kindro (Antankarana).
Distribution
Only known from Mt Tsaratanana.
General Description
Clustering palm, intermediate in size between D. lutescens and D. baronii (Perrier). LEAVES: sheath 18 cm or more long, pale brown, distally with small scales, 5.5 cm wide when flat; petiole 12-46 cm long, proximally 1.5 x 0.4 cm, distally 1.1 x 0.3 cm, with sparse scales; rachis in mid-leaf 1.3-1.5 cm wide, keeled, sub-glabrous or with some white waxy scales; leaflets 55-60 on each side of the rachis, in groups of 1-4, group interval 3.5-8 cm, the proximal 40-70 x 0.7-0.9 cm, median 55-60 x 1.5-1.7 cm (interval < 0.5 cm), distal 13-30 x 0.5-1.7 cm, main vein 1, margins thickened, glabrous, apices unequally bifid, attenuate. INFLORESCENCE interfoliar, branched to 2 orders (more?), recurved; peduncular bract (fide Perrier) beaked, deciduous; rachis c. 24 cm long, with 9 branched and 16 unbranched first order branches; first order branches seen (distal?) with a rachis to 4 cm long, 8 x 3 mm diam., with 5 rachillae, glabrous; rachillae 9-19 cm long, c. 2 mm diam., glabrous, with distant superficial triads; rachilla bract rounded. STAMINATE FLOWERS with sepals 2.3-2.5 x 1.8-2 mm; petals connate to the receptacle for 1.8-2.2 mm, free parts 4.3-4.8 x 2-3 mm; stamens 6, uniseriate, filaments 3.6-4.5 mm, flattened, anthers 1.5-1.6 x 0.6-0.8 mm, versatile, obtuse; pistillode 2-2.3 x 0.8-1 mm. PISTILLATE FLOWERS with sepals 2.5-2.7 x 2.2-3.5 mm; petals 3-3.8 x 3 mm; staminodes c. 0.4 mm; ovary 2 x 1.2 mm. FRUIT ellipsoid, 12-15 x 9-11 mm, rounded at the apex; endocarp fibrous, the fibres much anastomosing. SEED 13-14 x 9-10.5 mm, with few ruminations to 1 mm deep, corresponding to slight grooves on the outside.
[PW]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/38566/2879854

Conservation
DD - data deficient
[IUCN]

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]

Uses

Use
Palm-heart edible and highly esteemed.
[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