Heterodermia follmannii A, B photographs of Heterodermia follmannii with its gray thallus and black cilia C top view of thallus lobes D bottom view of thallus lobes without lower cortex showing the white, loose medulla and brownish attachment sides E cross section of thallus lobe showing the photobiont layer and the gray upper cortex which forms a rim on the ventral side with an open medulla F ventral side of thallus lobe with open medulla and black, long and branched cilia G top view H upwards bent terminal thallus part which is slightly bloated I ventral view of the attachment side. QR code redirects to 3D scan of Heterodermia follmannii. PW: Lichen.

 
 
  Part of: Jung P, Werner L, Briegel-Williams L, Emrich D, Lakatos M (2023) ´╗┐Roccellinastrum, Cenozosia and Heterodermia: Ecology and phylogeny of fog lichens and their photobionts from the coastal Atacama Desert. MycoKeys 98: 317-348. https://doi.org/10.3897/mycokeys.98.107764