Fungi Outer Hebrides

Family: Lecideaceae

Porpidia soredizodes (Lamy ex Nyl.) J.R. Laundon

Type: Crustose

Thin crustose thallus forming small grey or creamy-grey patches surrounded by a black prothallus. Round or irregular soralia with greyish-white or greyish, farinose or granular soredia. Found on siliceous rocks and pebbles, brick walls and gravestones

Smith, C.W. et al. editors (2009) The Lichens of Great Britain and Irelandd
Dobson, F.S. (2018) Lichens: an Illustrated Guide to the British and Irish Species