Physciaceae Physcia adscendens Growth type foliose Chemical results: Cortex K+ yellow. Medulla K- Common on nutrient-rich rocks, tombstones and cement, also on trees. Lichenicolous fungi include Arthonia epiphyscia, Lichenoconium lichenicola and Lichenochora physciicola # Thallus has small, pale-grey lobes with pale pseudocyphellae and long, marginal, black cilia. The lobe-tips are raised and become hood-shaped, inflating and bursting to reveal creamy-yellowish soredia. When fertile black apothecia are short-stalked and pruinose. Host to the lichenicolous fungi also found on Physcia tenella Similar: Physcia tenella

Physcia adscendens
Studland, Dorset. October 2012