Ravenea latisecta Jum.

This species is accepted, and its native range is E. Central Madagascar (Andasibe Reg.).

[PW]
Distribution
Only known from the Andasibe area.
Conservation
Endangered. The species only occurs in a single site, and numbers are very low (we have seen four trees).
General Description
Medium-sized undergrowth palm. TRUNK 6-10 m, 15-20 cm diam., internodes 4.5-12 cm, nodal scars c. 5 cm; wood hard. LEAVES 6-13, porrect to spreading; sheath 60-74 x 20 cm, white-tomentose to pinkish, abaxially with many small tufts of black hairs (not in Beentje collections); petiole 15-50 cm, proximally 7 x 4 cm across, distally 5 x 5 cm, with a dense brown tomentum; rachis c. 3.6 m, in mid-leaf 2-2.5 cm wide, almost flat abaxially and covered there with soft brown or white tomentum, adaxially with keel; leaflets stiff to slightly drooping, in one plane, about 73 on each side of the rachis, the proximal 55-100 x 2.5-3.5 cm, median 60-105 x 5-6.8 cm, distal 12-34 x 1.5-3.7 cm. STAMINATE INFLORESCENCES interfoliar, according to Jumelle solitary, but multiple in 5s-7s in Beentje collections, pendulous when dead, 140-160 cm, branched to 2 orders; peduncle 60-90 cm, 8 x 7 mm across; prophyll not seen; peduncular bracts seen 86, 160, 176 cm long; rachis 57-84 cm, with 30-40 branched and 32-60 unbranched first order branches; rachillae 3.5-20 cm, 0.7-1 mm across, with spaced flowers; pedicels 0.3-0.5 mm. STAMINATE FLOWERS with the calyx connate for 0.9 mm, with free lobes 0.5-0.6 x 0.2 mm; petals free, 2.4-2.5 x 1.2 mm; stamens equal, free, with filaments 0.1-0.2 mm and anthers 1.4 x 0.4 mm, rounded at base and apex. PISTILLATE INFLORESCENCE (description from Jumelle) ?solitary, with peduncle 60 cm long, 3 x 1.5 cm across; bracts 20 cm (inserted at 5 cm from the base of the peduncle), 80-85 cm and 90 cm (inserted at 10-15 cm), 70 cm (inserted at c. 70 cm) respectively; rachis 15 cm or less; rachillae c. 50 in number, close, 35-45 cm long. PISTILLATE FLOWERS with the calyx small, with the sepals connate for about half, the free part triangular; old petals marcescent, black, ovate, acuminate, 3.6 mm; older ovary oblong, with stigmatic remains lateral. FRUIT (description from Jumelle) long-pedicellate, ovate or elliptic, 10 x 7 mm, yellow turning red; stigmatic remains lateral.
Vernacular
Not recorded.
Biology
Moist forest at 900-1000 m, steep slope near hill crest.

[PW]
Use
Not recorded.

Native to:

Madagascar

Ravenea latisecta Jum. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 1995 Beentje, H.J. [4776], Madagascar 60591.000 No
Jan 1, 1995 Beentje, H.J. [4657], Madagascar 60612.000 No
Jan 1, 1995 Beentje, H.J. [4776], Madagascar K000114655 No
Jan 1, 1995 Beentje, H. [4652], Madagascar K000114656 No
Jan 1, 1995 Beentje, H.J. [4657], Madagascar K000114657 No

First published in Ann. Mus. Colon. Marseille, sér. 4, 5(1): 35 (1927)

Accepted by

  • Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.

Literature

Palmweb - Palms of the World Online

  • J. Dransfield & H. Beentje, The Palms of Madagascar. 1995

  • Herbarium Catalogue Specimens

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. 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