Close-up of firedot lichen Xanthocarpia ...

The close-up photograph showcases an orange lichen with white patches on grayish-brown rock. The lichen appears to be growing on a piece of petrified wood that has been split into two pieces.

The surface is uneven and has several cracks, giving it a rough texture. A thin layer of dark brown or black material covers the rock, likely a type of fungus or algae. The lichen itself is small and rounded, with a smooth texture. It forms clusters on the rock's surface, creating a patchwork effect.

The background of the image is out of focus but appears to be more of the same rock or petrified wood. Overall, the image provides a detailed view of the firedot lichen growing on petrified wood in Washington-on-the-Brazos State Historic Site in Texas. – AI vision