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      New island record and conservation status of Puerto Rican Bank endemic plant species, Ruehssia woodburyana (Acev.-Rodr.) Goyder, comb. nov., formally transferred from Marsdenia

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          Abstract

          Abstract
          Background

          Thought to be endemic to the Commonwealth of Puerto Rico, Ruehssia woodburyana ( Apocynaceae ) was recently discovered at a single location on Norman Island in the British Virgin Islands. Despite an increase in the extent of occurrence and area of occupancy, this species meta-population is very limited with a total of 37 individuals known in the wild. The largest subpopulation, on Mona Island, has only 26 individuals. The species suitable habitat is experiencing a continuing decline due to urban development, grazing by feral ungulates and human-induced forest fires. Conservation action is urgently needed and should be directed towards establishing genetically representative ex situ collections, such as seed for long term storage and live material for propagation. This species is evaluated as Critically Endangered (CR), based on Criteria C2a(i)+D, according to the IUCN Red List Categories and Criteria (version 3.1) and guidelines ( Subcommittee IUCN Standards and Petitions 2016).

          New information

          Extensive and regular surveys to the region enable the discovery of new plant records for different countries and islands. In this paper, we record a new island record for Ruehssia woodburyana on Norman Island, in the British Virgin Islands and discuss the species conservation status. Marsdenia woodburyana is transferred to the genus Ruehssia to reflect the resurrection of that genus for species of Marsdenia native to the New World.

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          Most cited references 4

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          Vines and climbing plants of Puerto Rico and the Virgin Islands.

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            Phylogeny of the tribe Marsdenieae (Apocynaceae), reinstatement of Ruehssia and the taxonomic treatment of the genus in Brazil

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              West Indian novelties I: A new species of Marsdenia (Asclepiadaceae) from Puerto Rico and a new name for Jamaican species of Calyptranthes (Myrtaceae)

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                Author and article information

                Contributors
                Journal
                Biodivers Data J
                Biodivers Data J
                1
                urn:lsid:arphahub.com:pub:F9B2E808-C883-5F47-B276-6D62129E4FF4
                urn:lsid:zoobank.org:pub:245B00E9-BFE5-4B4F-B76E-15C30BA74C02
                Biodiversity Data Journal
                Pensoft Publishers
                1314-2828
                2020
                23 January 2020
                : 8
                Affiliations
                [1 ] Royal Botanic Gardens, Kew, London, United Kingdom Royal Botanic Gardens, Kew London United Kingdom
                [2 ] Department of Natural and Environmental Resources of Puerto Rico, San Juan, Puerto Rico Department of Natural and Environmental Resources of Puerto Rico San Juan Puerto Rico
                Author notes
                Corresponding author: Sara Bárrios ( s.barrios@ 123456kew.org ).

                Academic editor: Luis Cayuela

                Article
                47110 11833
                10.3897/BDJ.8.e47110
                6992692
                Sara Bárrios, José A Sustache, David Goyder, Martin A Hamilton

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Page count
                Figures: 3, Tables: 0, References: 9
                Funding
                Survey work to Guana Island and the British Virgin Islands was supported by Darwin Plus grants (xx name of grants) and by the HSBC 150th Anniversary Fund.
                Categories
                Species Conservation Profiles

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