FIGURES 144–165 in Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species

FIGURES 144–165. LM and SEM images of Achnanthidium peetersianum from Rifaína city, São Paulo state (SP371175). 144–154. LM views of raphe valves. 155–157. LM views of rapheless valves. 158, 159. Girdle views of the taxon. 160–162. SEM external view of raphe valves showing striation pattern, axial and central areas and the terminal raphe fissures deflected. 163. SEM internal view of the raphe valve. 164, 165. SEM external view of the rapheless valves showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure.