FIG. 3 in A new Nitzschia Hassall species (Bacillariaceae, Bacillariophyta) from saline ponds in Serbia

FIG. 3. — Nitzschia haloserbica Vidaković, Ector, C.E.Wetzel & Krizmanić, sp. nov., SEM images taken from the type material (Bela Bara saline pond): A, C, E, SEM views of a frustule in valve view; B, SEM internal view of two valves from the same frustule; D, SEM internal view of the center of the valve with fibulae regularly distributed; F, SEM internal view of valve apex with helictoglossa and raphe; G, SEM internal detail view of valve apex with helictoglossa. Scale bars: A-C, 5 µm; D, G, 1 µm; E, 3 µm; F, 2 µm.