Cladonia

Description:

Hard to identify but probably C. gracilis. Podetia tall, brownish or greenish grey to dark brown, sparingly branched, finely pointed or terminating in small, well-formed, abruptly widened cups with a crown-like ring of shortly stalked brown pycnidia around the margin, podetial surface lacking soredia, smooth but beset with minute, green areoles, squamules absent, or sparsely distributed on the lower parts of the podetia; basal squamules ephemeral; apothecia brown, developed on the margins of the podetial cups. Widespread and locally common in lichen heaths, often where slightly shaded.

Habitat:

Between the moss, on a stone wall. Parque Natural de Sierra de Gredos

Notes:

Camera Model: NIKON D300. Exposure Time: 1/60 sec.; f/32; ISO Speed Rating: 800. Exposure Bias: 0 EV. Focal Length: 90.0 mm. Flash fired.