1. Family: Melastomataceae Juss.
    1. Genus: Warneckea Gilg
      1. Warneckea mangrovensis (Jacq.-Fél.) R.D.Stone

        This species is accepted, and its native range is Cameroon to Gabon.

    [KBu]

    Stone, R.D., Ghogue, JP. & Cheek, M. 2009. Warneckea austro-occidentalis, a new species from Cameroon and Nigeria, and re-evaluation of W. fascicularis var. mangrovensis (Melastomataceae-Olisbeoideae). Kew Bulletin 64: 307. DOI: https://doi.org/10.1007/s1

    Type
    Cameroon, South Province, 4 km N of Kribi, 2°58′N, 9°55′E, low littoral forest strip between sea and mangrove, imm. fr., 16 June 1970, Bos 6940 (holotype WAG; isotypes BR, K, L n.v., M, MO, P, UPS, YA).
    Distribution
    Cameroon (South Province) and north-western Gabon.
    Ecology
    Lowland evergreen forest, along and near the immediate coast.
    Conservation
    Warneckeamangrovensis is known from a total of four collections at three localities (two sites in southern Cameroon, one in northwestern Gabon). On 1 May 2003 the type region on the seashore north of Kribi was surveyed by the first and second authors, who found the area to be almost totally deforested. In a search starting at the type locality and continuing for 3 – 4 km northward along the immediate coast, only one small tree of W. mangrovensis was found (on a forested rock outcrop at the rear of the beach). Warneckeamangrovensis is assessed as endangered EN B2ab(iii) on the basis that two of the three sites (AOO 12 km2) are on the coast near Kribi which is being developed for retirement and holiday accommodation, and natural forest habitat has and is being cleared there in that connection. A new port and facilities connected with the oil and gas industry are also expected at Kribi.
    Note
    Warneckeafascicularis, W. guineensis, and W. mangrovensis are closely related taxa that replace each other geographically (Map 2). W. mangrovensisin particular is quite disjunct from the other two species, being separated by an airline distance of c. 600 km from the nearest known population of W. guineensis, and by c. 2000 km from W. fascicularis if one is willing to discount the anomalous record of that species from eastern Nigeria (Vogel Peak), based on Hepper 1364 (BR, K). We have seen the specimen and it is definitely W.fascicularis, but we suspect the locality is in error. The sterile specimen Bos 4915 is accommodated without difficulty in our circumscription of Warneckeamangrovensis. The material at P has prominent nervation on both surfaces of the leaf (already mentioned as a characteristic of W. mangrovensis and the West African W. fascicularis). The description and illustration of Bos 4915 in the Flore du Cameroun (Jacques-Félix 1983: 162, tab. 53: 1 – 3) suggest that its leaves are narrowly lanceolate, but in fact they are broader and thus not greatly different from the lanceolate to ovate-lanceolate leaves seen in the other collections of this species. The epithet apparently derives from the mangrove vegetation which occurs in proximity to some of the earlier collection sites. It is a bit of a misnomer since the species has not been found in mangrove habitats and would not be expected to occur there. Warneckea sp., Jacq.-Fél. (1983: 173, tab. 53: 4 – 6). Based on Bos 4915 (see below).

    Images

    Distribution

    Native to:

    Cameroon, Gabon

    Warneckea mangrovensis (Jacq.-Fél.) R.D.Stone appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Bos, J.J. [6940], Cameroon K000276112 isotype

    First published in Kew Bull. 64(2): 311 (2009)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Literature

    Kew Bulletin
    • ____ & Andreasen, K. (2009). The Afro-Madagascan genus Warneckea (Melastomataceae): molecular systematics and revised infrageneric classification. Taxon (in press).Google Scholar
    • ____, Ghogue, J.-P. & Cheek, M. (2008). Revised treatment of Memecylon sect. Afzeliana (Melastomataceae-Olisbeoideae), including three new species from Cameroon. Kew Bull. 63: 227 – 241.CrossRefGoogle Scholar
    • ____ (2007). The Afro-Madagascan genus Warneckea (Melastomataceae): molecular systematics and historical biogeography. Oral presentation at the 18th AETFAT Congress, Yaoundé, Cameroon.Google Scholar
    • McNeill, J., Barrie, F. R., Burdet, H. M., Demoulin, V., Hawksworth, D. L., Marhold, K., Nicolson, D. H., Prado, J., Silva, P. C., Skog, J. E., Wiersema, J. H. & Turland, N. J. (eds.). (2006). International Code of Botanical Nomenclature (Vienna Code) adopted by the Seventeenth International Botanical Congress Vienna, Austria, July 2005. Regnum Veg. 146.Google Scholar
    • ____ (2006). Phylogeny of major lineages in Melastomataceae, subfamily Olisbeoideae: utility of nuclear glyceraldehyde 3-phosphate dehydrogenase (GapC) gene sequences. Syst. Bot. 31: 107 – 121.CrossRefGoogle Scholar
    • Cheek, M., Pollard, B. J., Darbyshire, I., Onana, J.-M. & Wild, C. (2004). The Plants of Kupe, Mwanenguba and the BakossiMts, Cameroon, a Conservation Checklist. Royal Botanic Gardens, Kew.Google Scholar
    • Stone, R. D. (2004). Phylogenetic systematics of Melastomataceae, subfamily Olisbeoideae. Ph.D. dissertation, University of California, Berkeley.Google Scholar
    • IUCN (2001). IUCN Red List Categories: Version 3.1. IUCN Species Survival Commission, IUCN, Gland, Switzerland and Cambridge, U.K.Google Scholar
    • ____ (1983). Mélastomatacées. Vol. 24. In: B. Satabié & J.-F. Leroy (eds), Flore du Cameroun. Délégation Générale à la Recherche Scientifique et Technique, Yaoundé.Google Scholar
    • ____ & Mouton, J. (1980). Identification des Memecyleae (Melastomataceae) de l’Ouest-Africaind’aprèsleurscaractèresvégétatifs. Bull. Mus. Natl. Hist. Nat., sér. 4, B, 2: 3 – 19.Google Scholar
    • ____ (1979). Espècesnouvelles et peuconnues du genre Memecylon (Melastomataceae) enAfrique. Adansonia, ser. 2, 18 (4): 409 – 432.Google Scholar
    • ____ (1978). Les genres de Memecyleae (Melastomataceae) enAfrique, Madagascar et Mascareignes. Adansonia, sér. 2, 18: 221 – 235.Google Scholar
    • ____, ____ & Chalopin, M. (1978). Nervation et types foliaires chez les Memecylon (Melast.) africains. Adansonia, sér. 2, 18: 67 – 81.Google Scholar
    • Jacques-Félix, H. (1977). La graine et l’embryon chez les Memecylon (Mélastomatacées) africains. Adansonia, sér. 2, 17: 193 – 200.Google Scholar
    • Gilg, E. (1898). Melastomataceae. Vol. 2. In: A. Engler, (ed), MonographieenafrikanischerPflanzen-Familien und -Gattungen. Wilhelm Engelmann, Leipzig.Google Scholar
    • Engler, A. (1886). Beiträgezur Flora von Kamerun. Die von Dr. Buchholz in KamerungebeitgesammeltenPhanerogamen. Bot. Jahrb. Syst. 7: 331 – 342.Google Scholar

    Sources

    Herbarium Catalogue Specimens
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    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 Bulletin
    Kew Bulletin
    http://creativecommons.org/licenses/by-nc-sa/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