Xanthoria calcicola is a type of lichen, which is a symbiotic relationship between a fungus and an alga or cyanobacterium. This vibrant organism is commonly found in the Comunidad Valenciana and is known for its striking yellow-orange coloration. Xanthoria calcicola thrives in sunny, exposed locations, particularly on calcareous substrates such as limestone.

• Appearance: The thallus, or body of the lichen, is typically bright yellow to orange. It can form foliose (leaf-like) patches that adhere closely to the substrate.
• Habitat: This lichen prefers limestone surfaces, which are rich in calcium carbonate, contributing to its Latin name "calcicola," meaning "lime-living."
• Distribution: Xanthoria calcicola is widespread across Europe, including the Mediterranean region, and is well-represented in the Comunidad Valenciana.
• Ecological Role: Like other lichens, it plays an essential role in the ecosystem by contributing to soil formation and serving as a bioindicator of air quality.
• Local Names: In Spanish, it may be referred to as "liquen amarillo" due to its distinct color.

If you're exploring the natural landscapes of the Comunidad Valenciana, keep an eye out for Xanthoria calcicola on rocky outcrops, especially those facing direct sunlight. Its vivid hues make it a beautiful and noteworthy addition to the region's rich biodiversity.