B. Papp szerk.: Studia Botanica Hungarica 35. 2004 (Budapest, 2004)

Wojtal, A.; Buczkó, Krisztina: Comparative study of Navicula hasta and N. rakowskae: their morphology and distribution

15 19 16 18 21 Figs 13-21. Navicula rakowskae Lange-Bertalot. 13-15 = LM; 16-18 = SEM, internal view of the valve; 19-21 = SEM, external view of valve. (Scale bars: Figs 1-6, 13-16 = 10 urn; Figs 7-8, 17-18, 20 = 5 um; Figs 9, 19 = 20 urn; Figs 10-12, 21=2 urn).