Picture taken on the 19th April 2008 at the Targasonne´s cimitery, on siliceous rock, vertical position, humid place.
Frequent lichen in Catalonia, variable in colour from olive-green to almost black.
Foliose lichen, up to 6 cm diameter, sometimes forming colonies. Very lobed, lobes 0,5 to 1,5 cm wide, relatively thin, with a lot of isidia, initially globulous, becoming flat, squamulous.
No spot reactions.
On siliceous rocks. Collema subflaccidum is similar in form and colour but growing corcicolous.
See P. Tiévant , Guide des Lichens, pag 122.
Timdal's Gallery
C. Perez et alter (2''3) Guía dos Liques de Galicia , pag. 174