LICHALP

Ramalina baltica Lettau

Syn.: Ramalina obtusata auct.

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 species resembling R. obtusata, with which it was often confused, but with larger thalli (exceeding 3 cm in length) and wider branches (more than 2 mm wide) bearing parietal, laminal and apical soralia, the medulla mostly filled with arachnoid hyphae; on trunks and branches of deciduous trees; widespread in Europe, with a strain with divaricatic acid most frequent in Western Europe, and a strain with evernic acid in Central and Eastern Europe, with a few records from the Eastern Alps, but likely to occur also elsewhere.