1. Family: Polypodiaceae J.Presl & C.Presl
    1. Lastreopsis Ching

      1. This genus is accepted, and its native range is W. Central Tropical Africa, Tropical & Subtropical Asia to Pacific, S. Mexico to S. Tropical America.

    [FTEA]

    Dryopteridaceae, JP Roux, M Shaffer-Fehre, B Verdcourt. Flora of Tropical East Africa. 2007

    Rhizomes
    Rhizome long- or short-creeping, rarely erect
    Leaves
    Fronds spaced. Blade in almost all species decompound, deltoid-pentagonal, finely divided as in Ctenitis, but differing in scales which resemble those of Tectaria and in thickened basiscopic margins on leaflets which form wings on the axes to which they are attached. Costae raised, veins free; ultimate leaflets with margins thickened and decurrent to join margins of groove of pinna-rachis, prominent costae of distal parts of pinnae decurrent to form raised band between thickened margins of groove
    Stipes
    Stipe with adaxial groove, linear aerophores along ridges bordering groove.
    Pinnae
    Lowest pair of primary pinnae strongly basiscopically produced, catadromous below, anadromous towards tip of blade.
    Rachis
    Main rachis bordered above by two prominent ridges, continuations of thickened leaf margins of pinnae; intervening broad shallow channel filled with ctenitoid hairs (short, articulated unbranched hairs).
    Sori
    Sori orbicular, indusia present or fugacious; sporangia lacking appendages but usually bearing glands on stalk; spores winged or with many obtuse protuberances
    Note
    In both species as well as in Megalastrum an additional acroscopic pinnule is inserted between the first two ± opposite pinnule pairs of the basal pinna. About 35 species, pantropical.

    Images

    Distribution

    Native to:

    Argentina Northeast, Belize, Bolivia, Brazil South, Brazil Southeast, Brazil West-Central, Cameroon, China South-Central, Colombia, Costa Rica, Ecuador, Fiji, Gabon, Guatemala, Guyana, Hainan, Honduras, India, Jawa, Lesser Sunda Is., Malaya, Mexico Southeast, Mexico Southwest, New Caledonia, New South Wales, New Zealand North, New Zealand South, Nicaragua, Norfolk Is., Panamá, Paraguay, Philippines, Queensland, Sri Lanka, Sumatera, Taiwan, Venezuela

    Lastreopsis Ching appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Edwards, P.J. [2458], Brazil K000957113
    Edwards, P.J. [2458], Brazil K000957114
    Edwards, P.J. [2458], Brazil K000957115
    Edwards, P.J. [2458], Brazil K000957116
    Edwards, P.J. [2458], Brazil K000957117
    Edwards, P.J. [2458], Brazil K000957118

    First published in Bull. Fan Mem. Inst. Biol., Bot. 8: 157 (1938)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). World Ferns: Checklist of Ferns and Lycophytes of the World Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Literature

    Flora of Tropical East Africa
    • Contr. New South Wales Nat. Herb. 3 (5): 249–339 (1965)
    • Sunyatsenia 5: 239 (1940)
    • Bull. Fan. Mem. Inst. Biol. 8, 4: 157 (1938);
    • Polystichum § Parapolystichum (Keyserl.) C.Chr., Monogr. Dryopteris 2: 93 (1920)

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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/

    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