A strew slide of Nitzschia virgata (essentially all as girdle views) from England. Prepared by Johann Diedrich Möller. Olympus BHB microscope using 450nm LED light. As well as the wider field of view of the strew, I imaged one using 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. 28 images stacked in Zerene (Pmax).
Nitzschia virgata Roper 1858. Published in: Roper, F.C.S. (1858). Notes on some new species and varieties of British marine Diatomaceae. Quarterly Journal of Microscopical Science, London (6): 17-25, pl. III. Page 23, Plate 3, Figure 6. This name is currently regarded as a synonym of Hantzschia virgata (Roper) Grunow 1880. Published in: Cleve, P.T. & Grunow, A. (1880). Beiträge zur Kenntniss der arctischen Diatomeen. Kongliga Svenska Vetenskaps-Akademiens Handlingar 17(2): 1-121, 7 pls. Page 104.