Carolinea 76

W irth et al .: Biota in a Renosterveld vegetation habitat 39 Figure 2. Renosterveld near Haar- wegskloof Research Center; quartz outcrops in the investigated area, covered by the pale greenish X an­ thoparmelia phaeophana and the red Caloplaca haematodes . Figure 3. Buellia tetrapla on twigs of shrubs (width 1.1 cm). Figure 4. Diploschistes euganeus on shale rock (width 0.7 cm).