Diatom of the Month: April 2017 - Staurosirella pinnata
by Jennifer Fitchett* At very high altitudes and relatively high latitude (~30°S), the eastern Lesotho highlands comprise am ecologically restricted, yet biologically diverse, environment for plant growth. The terrestrial vegetation is described as the Drakensberg Alpine Centre, hosting a considerable number of endemic montane to alpine species. This region of South Africa is dotted by numerous small tarns (lakes) and wetlands, each host to thriving communities of largely cosmopolitan diatom species. Of these, a very common taxa, Staurosirella pinnata (Ehrenberg), has an interesting story to tell. Fig. 1 . Photographs of Mafadi summit, with the white diatomite outcrops visible in the foreground. Fig. 2 . A photograph of a typical microscope slide of diatoms from Mafadi Summit, i...