Family: Dacampiaceae Species: Pyrenidium actinellum sens. lat Growth type lichenicolous Photos: On Peltigera collina, Ballyvourney, Co. Cork, SW Ireland Small globose to subconical perithecia +/- immersed in host thallus. The asci are 4(-8) spored, spores green-brown becoming dark brown, 3-septate with paler end cells, 19-30 x 8-11 µm. Microscope photographs below. Widespread and recorded on a wide range of host genera including Baeomyces, Diploschistes, Heterodermia, Pseudocyphellaria, Leptogium, Lobaria and Peltigera.

Microscope photographs



Pyrenidium actinellum. February 2011