Cladonia pocillum is a lichen species that belongs to the Cladoniaceae family. It is commonly found in various regions, including the Comunidad Valenciana. Known for its intriguing appearance and ecological significance, Cladonia pocillum plays an important role in its native habitats.

This lichen is recognized by its unique morphological features:

• Thallus: The primary thallus is crustose, forming a small, irregular patch that is often gray to pale greenish in color.
• Podetia: It can produce short, cylindrical to cup-shaped structures known as podetia, which are characteristically grayish-green and may have soredia on their surface.
• Soredia: These are powdery granules that serve as reproductive structures, aiding in lichen propagation through vegetative means.

Cladonia pocillum primarily grows on soil, rock, and decaying wood surfaces. It thrives in open, sunlit areas and is often found in association with other lichen and moss species.

Ecologically, Cladonia pocillum contributes to soil formation and stability, particularly in eroded or nutrient-poor environments. It can also act as an indicator species for studying air quality and environmental conditions.

The presence of Cladonia pocillum in the Comunidad Valenciana showcases the rich biodiversity of the region and underscores the importance of conserving lichen habitats for the benefit of local ecosystems.