FIGURES 32–39. Odontidium himalongissimum. SEM. Figs 32–34. Valve views. Fig. 35. Apical pore field and rimoportula. Figs 36–37 in The genus Odontidium (Bacillariophyta) in the Himalaya-a preliminary account of some taxa and their distribution

FIGURES 32–39. Odontidium himalongissimum. SEM. Figs 32–34. Valve views. Fig. 35. Apical pore field and rimoportula. Figs 36–37. Internal view of valves. Figs 38–39. Frustules in girdle view. NMW.C.2007.006.P67: tributary to the Pindar River, Kumaon, India. Scale bars = 5 μm (Figs 32–34), 4 μm (Figs 36, 38, 39), 2 μm (Figs 35, 37).