View Larger Image Fragilaria crotonensis Photo by Kate Howell. More algae photos at www.uvic...Caption: [icon] pl. 2: fig. 15 in Østrup (1899). Scale bar = 10 µm.Micrasterias sol .Caption: [icon] pl. 5: fig. 120 in Østrup, Dan. Diatom. 1910. Scale bar = 10 µm.Figure 5. Different morphs of Fragilaria construens from Avery Pond, CT (USA) as shown by SEM. First...Fragilaria spec. zwischen Sphagnum, Birgeler Urwald April 2013 Hellfeldaufnahme und Autofluoreszenz...Fragilaria spec. zwischen Sphagnum, Birgeler Urwald April 2013 Hellfeldaufnahme und Autofluoreszenz...Caption: [icon] pl. 5: fig. 119 in Østrup, Dan. Diatom. 1910. Scale bar = 10 µm.Caption: [icon] pl. 5: fig. 125 in Østrup, Dan. Diatom. 1910. Scale bar = 10 µm.Caption: [icon] pl. 5: fig. 117 in Østrup, Dan. Diatom. 1910. Scale bar = 10 µm.Caption: [icon] pl. 2: fig. 20 in Østrup (1897b). Scale bar = 10 µm.