FIGURES 18–38 in Morphological and taxonomical analysis of the terrestrial diatom genus Humidophila (Bacillariophyta) on Ile Amsterdam and Ile Saint-Paul (Southern Indian Ocean)

FIGURES 18–38. Humidophila contenta (Grunow) R.L.Lowe et al. Light (LM) and scanning electron micrographs (SEM). 18–19. LM of a girdle view. 20–34. LM of valve views showing variation in size. 35. SEM of an entire valve (externally). 36. SEM of a girdle view. 37–38. SEM of an entire valve (externally). Note the proximal and distal raphe endings showing small depressions next to the raphe pores. LM scale bar = 10 μm. SEM scale bars = 1 μm.