FIGURE 2 in New geographical and taxonomical observations on two rare Gonatozygon species (Zygnematophyceae, Desmidiales) from the upper Okavango Delta, Botswana

FIGURE 2. Light microscope images of Gonatozygon dicranoaculeatum Thomasson from the Okavango Delta (Botswana). A–D) Vegetative cells, E) Central part of a vegetative cell showing the absence of a median constriction, F) Asymmetrical, longer cell with chloroplast in one semicell longer compared to that in the other semicell, G) Portion of cell indicating the structure of bifurcated spines on the surface. Scale bar 20 µm.