Fungi Outer Hebrides

Family: Parmeliaceae

Xanthoparmelia conspersa (Ehrh. ex Ach.) Hal

Type: Foliose

Thallus foliose, green-grey or distinctly yellow-grey with peg-like isidia on the older lobe surfaces. Lower surface black. Apothecia with red-brown discs and pale, often undulate, crenulate margins. Common and widespread on siliceous rocks, often in exposed locations

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
Thell & Moberg, editors (2011) Nordic Lichen Flora, Volume 4: Parmeliaceae