Irish lichens

Parmotrema reticulatum

Order: Lecanorales       Family: Parmeliaceae

Species: Parmotrema reticulatum

Growth type foliose.
Photos: On tree trunks. Macroom and Bantry, Co. Cork, Ireland.

Thallus of loosely attached grey-green lobes with marginal cilia. Upper surface +/- covered with fine white lines forming a network of hairline cracks. Lower surface dark brown to black, the rhizines extending to the paler margins. Soralia with granular soredia occur on lobe tips and margins. Stalked apothecia and pycnidia are rare.

Found on well-lit wayside and woodland trees, occasional on coastal rocks. Cortex: K+ yellow. Medulla: K+ yellow going orange-red, C-, KC+/- red, P+ orange-red, UV-

Similar: Parmotrema perlatum and P. pseudoreticulatum

Parmotrema reticulatum

Parmotrema reticulatum, fertile

Parmotrema reticulatum

Parmotrema reticulatum
Parmotrema reticulatum November 2009 and May 2010

All images used are copyright. Please contact me if you find errors.