LICHALP

Arthopyrenia persoonii A. Massal.

Non- or doubtfully lichenised.

Substrate: bark

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a non-lichenised species, confused with Naetrocymbe punctiformis in the past, but apparently closely related to A. grisea; most common on Fagus in the montane belt.