Fungi Outer Hebrides


Family: Physciaceae

Physcia tenella (Scop.) DC.

Type: Foliose

A very small, foliose lichen, with long marginal cilia and usually with terminal soralia on the turned up undersides of the mature lobe-tips. The lobe surfaces often dotted with black pycnidia. Short-stalked apothecia with with blue-black or thinly pruinose discs. A common indicator of nitrogen enrichment and found on trees.

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 (2002) Nordic Lichen Flora, Volume 2: Phyciaceae

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