FIGURES 59–62 in Three new species of Ulnaria (Bacillariophyta) from the Wuling Mountains Area, China

FIGURES 59–62. Ulnaria gaowangjiensis sp. nov., girdle view, SEM. 59. One complete frustule. 60–62. Details of the previous whole frustule, note the cingulum elements, especially the six closed girdle bands (labeled B1–B6) and plaques (arrows). Scale bar =10 μm (Fig. 59), 5μm (Figs 60–62).