Lichen always fascinate me, as they sit between two worlds being part algae working in cahouts with various fungi, existing alongside each other in a special symbiotic relationship. Together these two parts of the partnership act very differently to singly.
This complex relationship results in a huge variety of colours, textures, sizes and forms.
When holidaying on Anglesey, an island off the north-west tip of North Wales and separated from it by the wild Menai Straits, we stayed in a bungalow with the garden boundary formed by a stone wall. One stretch of this wall was favoured by lichen, perhaps due to its aspect, the make up of the stone or some other factor.
Here is the group of photos I took while wandering the wall in a gap between rain showers.