TABLE 1 in New geographical and taxonomical observations on two rare Gonatozygon species (Zygnematophyceae, Desmidiales) from the upper Okavango Delta, Botswana

TABLE 1. Summary of the dimensions of cells of G. dicranoaculeatum and G. chadefaudii from the literature and a comparison with dimensions of cells found in the Okavango Delta, Botswana. * Values in italics indicate the incorrect dimensions originally published by Thomasson (1966). Dimensions (µm)G. dicranoaculeatumG. chadefaudiiOkavango Delta cells (Current study)Zambia Thomasson (1966)Australia Thomasson (1968)French Guiana Bourrelly (1977)Australia Thomasson (1968)Length (L)218–287 (avg. 257)244204180–240–280120Width (W)8.4–12 (avg. 10.5)10–12 28 *1111–1410L:W2424 8.7 *18.516–2012Spine length1.2–4.3 (avg. 2.5)5–6 12 *-2–33