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Author South Africa



Williamson, D.B.1994A contribution to knowledge of the desmid flora of South Africa and the adjoining states of Ciskei and SwazilandShow Detail
Williamson, D.B.1995Cosmarium phaseolus Breb. or Euastrum turneri W.West? A dichotypic desmid population from the plateau of Table Mountain, Cape Town, South AfricaShow Detail
Williamson, D.B.1995aA newly-described zygospore of Cosmarium subprotumidum Nordst. (Desmidiaceae) and a rare desmid (Cosmarium hexalobum Nordst.) from the Little Karoo, South AfricaShow Detail
Williamson, D.B.2000Some desmid floras of wet rock surfacesShow Detail
Lange-Bertalot, H. & Moser, G.1994Brachysira Monographie der Gattung: Wichtige Indikator-Species fur das Gewasser-Monitoring, und Naviculadicta nov.gen.: Ein Losungsvorschlag zu dem Problem Navicula sensu lato ohne Navicula sensu stricto.Show Detail