Arecaceae
Chrysalidocarpus

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

First published in Taxon 71: 1183 (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]

General Description
Solitary palm. TRUNK 8-15 m high, cylindrical, 8-15 cm diam. LEAVES: sheath medium brown with a dense layer of wax, the young sheath bright pink, without ligules or auricles, distally with medium-sized laciniate scales; petiole c. 35 cm long, waxy, with scattered scales; rachis in mid-leaf 1.4-1.8 cm wide, keeled, with scattered scales, slightly waxy; leaflets in groups of 4-6, the group interval > 6 cm, the leaflet interval 0.5-1 cm, hanging towards the middle (Perrier); proximal 82-86 x 2.5-3.2 cm, median 55-92 x 2.3-2.9 cm, distal 13-39 x 0.3-2 cm, adaxially dark green, abaxially glaucous, with sparse large ramenta (6-10 mm long) on the proximal midrib, with minute reddish scales scattered over the minor veins, main vein 1, with slightly thickened margins, apex unequally attenuate. INFLORESCENCE interfoliar, branched to 3 orders (or more); prophyll coriaceous; peduncular bract coriaceous, deciduous, with a rather long beak; first order branch seen with secondary rachis of Jun-20 cm, proximally 01-Mar x 0.5-1.3 cm, glabrous, with 07-Dec second order branches; rachis bracts up to 12 mm long; rachillae 16-30 cm long, 3-4.5 mm diam., with distant triads in shallow pits; rachilla bracts proud, rounded to acute. STAMINATE FLOWERS not seen. PISTILLATE FLOWERS not seen at anthesis; in the fruit the sepals are 3.7-4.1 x 3.9-4.7 mm (the outermost largest), obtuse, with membranous margins; petals 05-Jun x 3.9-4.7 mm, the innermost largest; staminodes 0.5-1.1 mm, thin and flat. FRUIT ellipsoid, 16-20 x 8.5-12.5 mm, rounded at base and apex, with sub-basal stigmatic remains (with a ridge to the stalk); endocarp fibrous, with slightly anasto-mosing fibres. SEED ellipsoid, Dec-13 x 05-Jun mm, pointed at the base, rounded at the apex, attached to the spot corresponding to the stigmatic remnant on the outside; endosperm deeply ruminate, the ruminations reaching the middle.
Biology
Moist lowland forest; 450 m (fide Cours).
Vernacular
Lafaza (Betsimisaraka).
Conservation
?Extinct; not seen since 1949.
Distribution
Only known from the Marojejy area and Betampona.
[PW]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/38526/2872201

Conservation
EN - endangered
[IUCN]

Uses

Use
Leaves used in thatching.
[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