Arthonia apotheciorum Arthoniaceae
Arthonia apotheciorum #

Lichenicolous fungus
Chemical results negative. Epithecium K+ olive

Can be common in the apothecia of Lecanora albescens and other members of the Lecanora dispersa group.
BLS conservation evaluation: LC NS

Black apothecia develop in the hymenium of the host lichen.
Spores 1-septate, 9-15 x 3-5 Ám. Paraphysoids 1.5-2 Ám wide, the apices with dark pigmented caps. Microscope photograph below.

Similar: Arthonia varians. Spores (1-)2-3 septate, on Lecanora rupicola


Arthonia apotheciorum


Arthonia apotheciorum

Microscope photograph
Arthonia apotheciorum, spores
Arthonia apotheciorum
On Lecanora albescens. Studland and Church Knowle, Dorset. October 2012 and March 2014

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