Biblthca Lichenol. 95: 312 (2007)

Basionym: Sticta jeckeri Roum., Revue mycol., Toulouse 3(no. 9): 33 (1881)

Sticta jeckeri Roum., Rev. Mycol. 3: 33 (1881), as ”jackeri”.!!!!!!!!!!!!!!!!!!!!!!!!!! TYPE: France, Deux-Sevres, cascade de Crévent, 1880 Jecker in Roumeguere, Lich. Gall. exs. no. 245 (UPS lectotype, Kalb, Biblioth. Lichenol. 95: 312, 2007). Syn. Parmelia ulophylla auct., Punctelia ulophylla auct. (non (Ach.) van Herk Aptroot). Thallus variable, rosette-forming or irregular, rather closely attached, to 5 cm diam. Lobes to 3 mm wide, rounded, occasionally concave with margins bent upwards. Upper surface greenish grey, slightly shiny, pruinose and slightly brownish towards the margins; pseudocyphellae sparse to absent, small; soralia mainly marginal, rarely laminal. Lower surface whitish or pale brown, rarely dark brown; rhizines simple often clustered, brownish to pale. Apothecia unknown. Pycnidia rare, laminal, immersed and blackish. Conidia unciform to ?liform, 3-5 x 1 μm. Chemistry: Cortex C—, K+ yellow, KC—, PD—; atranorin. Medulla and soralia C+ red, K—, KC+ red, PD—; lecanoric acid. Habitat: Corticolous on deciduous trees in the lowlands. Distributio: Southern, known only from a few localities in southern Demnark, Norway and Sweden. Western and Central Europe, eastwards to Estonia and western Russia. -->