FIGURE 73 in Observations on a fragilarioid diatom found in inter-dune lakes of the Badain Jaran Desert (Inner Mongolia, China), with a discussion on the newly erected genus Williamsella Graeff, Kociolek & Rushforth

FIGURE 73. Morphometric analysis on LM images of Fragilaria crenophila var. sinensis from Badain Jaran lakes (combined population, n=90, in red) and comparison with the type populations of Williamsella angusta from Blue Lake, Utah, USA (n=90, in blue) and Fragilaria asiatica from Tibet (n=90, in black). Plot of probability density distribution with histograms of the valve length, valve width and stria density data.