Description: A. ilicinella resembles A. ilicina (described elsewhere); it is the least common of the two oceanic species with a narrower range of smooth-barked hosts. A. ilicinella grows mainly on hazel and has smaller discs (0.1-0.6mm diam. compared with 0.2-1mm diam.) and smaller spores (16-23&

371;m long compared with 26-36&

371;m long) than its relative. In Ireland, it is known from Counties Kerry and Donegal, but is easily overlooked in the field.

Key Identification Features:

• Easily mistaken for A. ilicina which has larger discs and spores
• Grows on hazel in the oceanic woods of the west.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Arthonia ilicinella at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Arthonia ilicinella at iNaturalist World Species Observations database.