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On 11 jan 2010, at 11:01, Suzanne leroy wrote: > Dear Bas, > Have you checked Nitraria retusa, Zygophyllaceae. Dear Suzanne, Thanks for the suggestion. I (in principle a botanist) have not even heard about that species. I will check and let you know. Bas > Suzanne > > > On 11/01/2010 06:28, "Bas van Geel" <[log in to unmask]> wrote: > >> Dear colleagues, >> >> Recently I found some quite big pollen grains with a characteristic >> morphology (see attached ppt). This pollen type occurs in sediments >> from a Medieval site in the Netherlands, together with (among >> others) pollen of Secale, Centaurea cyanus and Fagopyrum. >> Any suggestions for identification are welcome! >> >> Best wishes, >> Bas >> >> ------------------------------------------------------------ >> Dr Bas van Geel >> E-mail: [log in to unmask] Phone: +31 20 525 7664 Fax: +31 >> 20 525 7832 >> http://home.medewerker.uva.nl/b.vangeel/ >> Institute for Biodiversity and Ecosystem Dynamics (IBED) >> http://www.science.uva.nl/ibed >> >> Research Group Paleoecology and Landscape Ecology >> Faculty of Science, Universiteit van Amsterdam >> Visiting address: Science Park 904, 1098 XH Amsterdam >> Postal address: P.O. Box 94248, 1090 GE Amsterdam, The Netherlands >> ------------------------------------------------------------ >> >> >> >> >> >> >> >> ------------------------------------------------------------ Dr Bas van Geel E-mail: [log in to unmask] Phone: +31 20 525 7664 Fax: +31 20 525 7832 http://home.medewerker.uva.nl/b.vangeel/ Institute for Biodiversity and Ecosystem Dynamics (IBED) http://www.science.uva.nl/ibed Research Group Paleoecology and Landscape Ecology Faculty of Science, Universiteit van Amsterdam Visiting address: Science Park 904, 1098 XH Amsterdam Postal address: P.O. Box 94248, 1090 GE Amsterdam, The Netherlands ------------------------------------------------------------