Anthodiscus floreatus from Troublesome Gully, Oamaru, New Zealand. Single example on the slide. No details on the mountant. Some issues with the mountant and adhesive to the coverslip. Unknown maker. Olympus BHB microscope using 450nm LED light. 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. 36 images stacked in Zerene (Pmax).
Anthodiscus floreatus Grove & Sturt, nom. illeg. 1887. Published in: Silva, P.C. (1970). Remarks on algal nomenclature. IV. Taxon 19: 941-945. Page 65, Plate 6, Figure 20. This name is currently regarded as a synonym of Anthodiscina floreata P.C.Silva 1970. Published in: Silva, P.C. (1970). Remarks on algal nomenclature. IV. Taxon 19: 941-945. Page 941.
I recently acquired about 30 more slides by this maker to add to the ones I already had, so if you want to see others by them, search for AAAAA in the Search option at the top of the page, and I’ll include this in each of the pages for them.