Rogier P. J. de Kok

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Pixel based analysis deals with the three basic features of a single pixel; Position Size and Value. The important spatial context of the pixel is used in filter operations, where the output value is assigned to the central pixel. In the middle of the 70 th , Landgrebe (1976) tried to register the important spatial context of the pixels (the software ECHO),(More)
A revision of the genus Gmelina L. (Lamiaceae) is presented with a summary of its taxonomic history, keys, full descriptions, distribution maps, conservation assessments, ecological information and ethno-botanical notes. For the New Caledonia species no descriptions and distribution maps are given as they have been provided in an earlier publication. In(More)
A revision of the genus Vitex is presented for the Flora Malesiana region excluding New Guinea. A key to all 16 species and two subspecies for the Flora Malesiana is provided. Descriptions are given of species, notes on ecology, distribution, local uses, vernacular names and conservation status are given for all species from the Flora Malesiana region which(More)
A revision of the genus Teijsmanniodendron Koord. (Lamiaceae) is presented with a summary of its taxonomic history, keys, full descriptions, distribution maps, conservation assessments, ecological information and ethno-botanical notes. In this treatment, 23 species are recognised, one new combination is made: Teijsmanniodendron havilandii (Ridl.) G. Rusea,(More)
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