Barbara Gravendeel Naturalis Biodiversity Center, The Netherlands
1 protocol

Rob Langelaan Naturalis Biodiversity Center, The Netherlands
1 protocol

Adam Karremans Lankester Botanical Garden, University of Costa Rica, Costa Rica
1 protocol

Bertie Joan van Heuven
  • Naturalis Biodiversity Center, The Netherlands
Research focus
  • Plant science
  • 1 Author merit


HBO-A laboratory technician botany (1981) and zoölogy (1982), Van Leeuwenhoek Instituut, Delft, the Netherlands

Current Position

Senior laboratory technician, Naturalis Biodiversity Center, Leiden, the Netherlands

1 Protocol published
Documentation of Floral Secretory Glands in Pleurothallidinae (Orchidaceae) Using Scanning Electron Microscopy (SEM)
Authors:  Adam P. Karremans, Bertie Joan van Heuven, Rob Langelaan and Barbara Gravendeel, date: 11/20/2016, view: 8633, Q&A: 0
A clear, step by step description of the treatment of orchid flowers, subtribe Pleurothallidinae, with Critical Point Drying for SEM is presented. It shows that a simple, short fixation and dehydration method prior to Critical Point Drying is ...
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