A selection of Stephanogonia danica (and some other diatoms) in different orientations, from Mors, Jutland. No makers name, but based on the style this is by Laurence Hardman. Olympus BHB microscope using 450nm LED light. As well as the wider array I imaged a group using the 63x Leitz Pl Apo NA 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 110 images stacked in Zerene (Pmax). Stacked from the bottom (furthest away from the coverslip) to the top.
Stephanogonia danica Grunow, 1866. Original description: Grunow, A. (1866). Moler aus Jütland eingesandt von Th. Jensen analysirt von A. Grunow. [Uber Sceptroneis? gemmata n. sp. Grun.]. Hedwigia, 5(10): 145-146. Page 146. Synonymised names: Porotheca danica (Grunow) Fenner, 1994. Pterotheca danica (Grunow) Forti, 1909. Pyxilla danica (Grunow ex Van Heurck) Kanaya, 1957.
This name is currently regarded as a synonym of Furtheca danica (Grunow) S.Blanco & C.E.Wetzel, 2016. Published in: Blanco, S. & Wetzel, C.E. (2016). Replacement names for botanical taxa involving algal genera. Phytotaxa 266(3): 195-205. Page 198.