Punctelia jeckeri (Roum.) Kalb

Punctelia jeckeri is an epiphyte characterized by pruinose and uprising lobe margins and mainly marginal soralia. In the Czech Republic, it is scattered from lowlands to mountains, with the centre of distribution at lower elevations. It usually grows on the bark of deciduous trees, more rarely on conifers with more acidic or subneutral bark (e.g., oak, hawthorn, ash, larch) at sun-exposed stands in open landscape or forests, often on branches in tree crowns. Its distribution area includes Europe and west to southwest of North America. It was not always distinguished from P. subrudecta in the past and revision of herbarium material is necessary to determine its historical occurrence in the Czech Republic. Currently, it is the most abundant Punctelia species here.

Ascomycota → Lecanoromycetes → Lecanorales → Parmeliaceae → Punctelia