LICHALP

Naetrocymbe fumago (Wallr.) Magnus

Syn.: Arthopyrenia fumago (Wallr.) Körb., ?Naetrocymbe fuliginea Körb., Spermatodium fumago (Wallr.) Trevis., Verrucaria fumago Wallr.

Non- or doubtfully lichenised. Poorly known taxon.

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 probably non-lichenised species, with a thallus developed as a dark spongy subiculum, minute glossy ascomata, interascal filaments which are indistinct in mature ascomata, ventricose to obpyriform, fissitunicate, 8-spored asci, and first 3-septate, then submuriform and pigmented ascospores (24-28 × 10-12 µm); on branches of various deciduous trees (e.g. Tilia, Populus, Alnus) throughout Europe, with a few historical records from the Eastern Alps (Italy).