Figure 1From: Establishment of endolithic populations of extremophilic Cyanidiales (Rhodophyta)The endolithic Cyanidiales at Larderello in Tuscany (A) and in Pisciarelli, Naples, Italy (B). The arrows indicate the biomat of Cyanidiales that thrive inside of the rock at these sites. The TEM images show Galdieria-A (A) and Galdieria-B (B) from the endolithic sites. Scale bars = 1 μm.Back to article page