A strew slide from Long Mynd, Shropshire. Moorland pool, >600 mesh. Good range of species present. No makers name but this is by Bernard Hartley. Olympus BHB microscope using 450nm LED light. I chose an example of a Tabellaria sp. (T. fenestrata ?) for high magnification imaging. 63x Leitz Pl Apo 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 15 images stacked in Zerene (Pmax).
The entry from Bernard Hartley’s Sample and Strew Slide Collection PDF for this slide is shown above (accessed from here).
Nice review on Tabellaria: Heudre, D., Wetzel, C.E., Lange-Bertalot, H., Van de Vijver, B., Moreau, L., & Ector, L. (2021). A review of Tabellaria species from freshwater environments in Europe. Fottea, 21(2), 180-205. doi: 10.5507/fot.2021.005