An arrangement of five diatoms from Jack’s Ranch, Monterey, California, USA. Specifically called out is the Rutilaria epsilon (described as ‘rare’). Very yellowed mountant, and the coverslip is damaged with a piece missing. No makers name. Olympus BHB microscope using 450nm LED light. As well as the arrangement with a 10x objective, I also imaged the Rutilaria with the 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. 42 images stacked in Zerene (Pmax).
Rutilaria epsilon Greville, 1863. Published in: Greville, R.K. (1863). Descriptions of new and rare diatoms. Series X. Quarterly Journal of Microscopical Science, Series 2 3: 227-237, pls IX, X. Page 228, Plate IX [9], Figure 1.