FIGURES 1–50 in Transfer of Fragilaria atomus Hust. to the genus Stauroforma (Bacillariophyta) based on observation of type and newly collected material

FIGURES 1–50. LM: Stauroforma atomus comb. nov. Fig. 1. Iconotype reproduced from Hustedt (1931, fig. 672B) illustrating specimens in valve view and a pair of frustules in girdle view. Figs 2–31. Specimens BRM E2963 (lectotype). Figs 28–31. Girdle view. Figs 32–50. Specimens from Brazil. Scale bar = 5 µm.