An arrangement of four Anthodiscus floreatus from Papakaio, Oamaru, New Zealand. Upper middle one is ‘underside upwards’ with the rim towards the coverslip, and obviously the one at the right is a side view. Prepared by JA Long. Olympus BHB microscope using 450nm LED light. 40x Leitz Pl Apo NA 1.00 objective, oil immersion. Olympus Aplanat Achromat condenser, oblique lighting, oil immersion. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 118 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. Plate 6, Figure 20. This name is currently regarded as a synonym of Anthodiscina floreata P.C.Silva.