Family: Parmeliaceae
Hypogymnia physodes (L.) Nyl.
Tube Lichen
Type: Foliose
Widely distributed on siliceous rocks, trees, Calluna stems and other acidic substrates. Characteristic hollow lobes with black, wrinkled under surface. Black pycnidia are common
Determiner:
Christine Johnson
References:
Smith et al. editors (2009) The Lichens of Great Britain and Ireland
Dobson (2018) Lichens: an Illustrated Guide to the British and Irish Species
Ahti et al. editors (2011) Nordic Lichen Flora. Volume 4: Parmeliaceae