Arecaceae
Chrysalidocarpus

Chrysalidocarpus basilongus (Jum. & H.Perrier) Eiserhardt & W.J.Baker

First published in Taxon 71: 1183 (2022)
This species is accepted
The native range of this species is E. Madagascar (Mt. Vatovavy). 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]

General Description
Solitary palm. STEM 2-5 m tall, 10-15 cm diam.; internodes short; crownshaft well-developed, whitish, c. 40 cm long. LEAVES strongly curved, c. 6-7 in the crown, 1-1.5 m long; sheath white and waxy, c. 40 cm long, glabrous, without ligules; petiole 14-16 cm long, c. 1.5 cm wide, channelled, with patches of dense tomentum; rachis c. 1 m long; leaflets more than 30 on each side of the rachis, inn groups of 2-3, the proximal leaflets with a very long gap between the basal pair and the next pair, the most proximal to 117 x 3 cm, the next 75 x 1.9 cm, median 64-68 x 2.6-3.1 cm, the group interval 4.5-5.5 cm, the leaflet interval 0.2-0.3 cm, distal 16-40 x 1-1.7 cm, glaucous abaxially, with lines of minute reddish scales on the minor veins, main vein 1, with thickened margins, apices unequally attenuate. INFLORESCENCE interfoliar, c. 80 cm long, branched to 2 orders; peduncle 40-60 cm long, proximally 5 x 0.5 cm, straight within the sheath, then curved through 180 ° so the branched part hanging; prophyll borne at c. 40 cm above the base of the peduncle, waxy; peduncular bract inserted at c. 50 cm from the base of the peduncle; first order branches with a secondary rachis of up to 11 cm, proximally 2 x 0.8 cm, with up to 8 rachillae, glabrous; rachillae 15- 19 cm long, c. 4 mm diam., with distant triads in pits; rachilla bracts proud and rounded. STAMINATE FLOWERS not seen. PISTILLATE FLOWERS not seen; sepals in fruit rounded; petals twice as long as the sepals (fide Beccari). FRUIT (see note) ellipsoid, c. 20 x 9-10 mm, with rounded base and apex; endocarp fibrous, with anastomosing fibres. SEED oblong, with pointed base and rounded apex; endosperm ruminate with shallow distant intrusions.
Biology
Small-crown, submontane forest, on gneiss; 300-500 m.
Conservation
Endangered. Single-site status; the only protection of the forest derives from local fady (taboos).
Distribution
Only known from Vatovavy.
Vernacular
Madiovozona (Tanala; meaning 'clean neck').
[PW]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/38521/2871677

Conservation
CR - critically endangered
[IUCN]

Uses

Use
Excellent palm-heart.
[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.

  • 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