Gyalidea fruticola, a new corticolous lichen from Europe

The diminutive species Gyalidea fruticola is described from Central Sweden and northern Italy. It is typically found on decaying bark, on semi-shaded Lonicera spp. in deciduous, mixed deciduous/coniferous or coniferous forests. The species is characterized by its small and pale apothecia, its submuriform. ascospores and its habitat preference.