Caption
Plate 3. Pseudostaurosira neoelliptica, SEM details of population found in the Caloosahatchee River, Lee County. Fig. 1. Valve view with detail of sternum, apical pore fields, striae, and spine location. Figs. 2 and 3. Side views showing detail of spines, girdle bands, and rows of areolae on valve mantle. Fig. 4. Details of apical pore fields, areolae and closing plates. Figs. 5 and 6. Side views with additional details of areolae and their closing plates, as well as spines. Scale bars: 1, 2 and 4–6 = 2 µm; 3 = 5 µm
