Scanning electron micrograph showing Penta lanceolata unacetolyzed pollen. This is a higher magnification view of CIL 41306. Compare this pollen to acetolyzed pollen images by the same contributor in the Library.
Image collected on a Zeiss DSM 962 SEM. See detailed protocol at http://www.dartmouth.edu/~emlab/manuals/sempreps/index.html