1. Family: Zamiaceae Horan.
    1. Genus: Dioon Lindl.
      1. Dioon angustifolium Miq.

        This species is accepted, and its native range is Mexico (Nuevo León, Tamaulipas).

    [EDGE]

    Forest, F. et al. 2018. Gymnosperms on the EDGE. Scientific Reports 8: 6053. doi:10.1038/s41598-018-24365-4.

    Conservation
    Dioon angustifolium is rated as Vulnerable (VU) according to IUCN Red List criteria and has received a EDGE score of -0.76, which places it in position 394 on the EDGE Gymnosperm list. It has a Evolutionary Distinctiveness of 9.35, ranked 243. More information on the EDGE Gymnosperm project here https://www.edgeofexistence.org.

    Images

    Distribution

    Native to:

    Mexico Northeast

    Dioon angustifolium Miq. appears in other Kew resources:

    First published in Tijdschr. Wis.- Natuurk. Wetensch. Eerste Kl. Kon. Ned. Inst. Wetensch. 1: 37 (1848)

    Accepted by

    • Osborne, R., Calonje, M.A., Hill, K.D., Stanberg, L. & Stevenson, D.W. (2012). The world list of Cycads Memoirs of the New York Botanical Garden 106: 480-510.

    Not accepted by

    • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141. [Cited as Dioon edule var. angustifolium.]

    Literature

    Kew Backbone Distributions
    • Osborne, R., Calonje, M.A., Hill, K.D., Stanberg, L. & Stevenson, D.W. (2012). The world list of Cycads Memoirs of the New York Botanical Garden 106: 480-510.

    Sources

    EDGE Gymnosperms
    EDGE of Existence (Gymnosperms)
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. 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 2019. 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

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/