Punctelia borreri Parmeliaceae
Punctelia borreri

Growth type foliose
Chemistry: Cortex: K+ yellow. Medulla and soralia: C+ pinkish-red, P-

Occurs on well-lit nutrient-rich trees, sometimes found on coastal rocks. Increasing in range but prefers sunny, mild areas with low rainfall.

Blue-grey to greyish slightly notched lobes becoming brownish at tips, the small, punctiform pseudocyphellae becoming +/- sorediate. Lower surface black with simple rhizines not extending to margins. Apothecia are occasional, the discs reddish-brown.

Similar: P. subrudecta, pale brownish beneath lobes, medulla C+ red
Punctelia reddenda, under-surface black, medulla C-


Punctelia borreri


Punctelia borreri


Punctelia borreri, fertile
Punctelia borreri
Canford Cliffs and Sturminster Marshall, Dorset. March 2013 and 2014

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