Operculina hamiltonii (G.Don) D.F.Austin & Staples

  • Filed As

    Convolvulaceae
    Operculina hamiltonii (G.Don) D.F.Austin & Staples

  • Collector(s)

    R. de Lemos Fróes 1764 with B. A. Krukoff, 12 Jul 1932

  • Location

    Brazil. Maranhão. Maracassumé River Region.

  • Habitat

    On terra firma, Capoeira, Rio Grande.

  • Description

    Vine. Phenology of specimen: Flower, Fruit.

  • Identifiers

    NY Barcode: 1014416

    Occurrence ID: 88a4747a-f695-48d0-8561-7cdc3bab05d9

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  • Region

    South America

  • Country

    Brazil

  • State/Province

    Maranhão

  • Locality

    Maracassumé River Region.

  • Coordinates

    -1.89263, -45.8918

  • Coordinate Uncertainty (m)

    77999.4

  • Georeferencing Method

    Georeferencing Quick Reference Guide, Version 2012. Georeferenced to the geographic center of Rio Maracaçumê (synonymous with Rio Maracassumé) in Maranhão, Brazil. Using Google Maps - Satellite View, located Rio Maracaçumê. Used Distance Measurement Tool (Google Maps) to measure a straight line starting at the mouth of Rio Maracaçumê (where it branches off from the Atlantic Ocean) to the farthest extent of the river (approximated through the dense forest); halved this distance to approximate the location of the midpoint of Rio Maracaçumê. Used Canadensys Lat/Long Crosshairs to find the coordinates, on the adjacent shore. Input coordinates, linear extent (distance from the midpoint to the farthest extent of the river, 77997.7 m.), and measurement error (.1 m.) into the MaNIS Georeferencing Calculator to find the uncertainty radius (according to the Georeferencing Quick Reference Guide, Named Place: River, stream, road, path).

  • Geodetic Datum

    WGS84

  • Distribution

    Map all specimens of this taxon

OCR Text not available.