On some saxicolous lecideoid lichens of the beringian region and adjacent areas of eastern Siberia and the Russian far east

1) Miriquidica leucophaeoides (syn. Lecidea leucophaeoides Nyl.) is proposed as a new combination. 2) The following taxa are synonyms (correct names in parenthesis): Lecidea aglaeida Nyl. (= Calvitimela aglaea), Lecidea cheiloplaca Vain. (= Miriquidica deusta), Lecidea chlorophanoides H.Magn. in Malme (= Candelariella vitellina), Lecidea confluens f. refluens Vain. (= Lecidea confluens), Lecidea declinans f subsculptella Nyl. (= Lecidea lapicida var. lapicida), Lecidea konyamensis Nyl. (= Miriquidica leucophaeoides), Lecidea lenensis Oxner (= Calvitimela aglaea), Lecidea lugubrior Nyl. (= Clauzadeana macula), Lecidea melapsepha Nyl. (= Cecidonia xenophana), Lecidea reducens Vain. (= Lecidea lapicida var. lapicida), Lecidea subfumosa (Arnold) Zwackh f. melanocarpa Vain. (= Rhizocarpon polycarpum), Lecidea subfumosa f. poliocarpa Vain. (= Lecidea atrobrunnea: chemorace 0), Lecidea subtristiuscula Nyl. (= Miriquidica leucophaeoides). 3) Lectotypes were chosen for Lecidea konyamensis Nyl., Lecidea lygotropa Nyl., Lecidea reducens Vain., Lecidea subfumosa f. melanocarpa Vain., Lecidea subfumosa f. poliocarpa Vain., Lecidea subtristiuscula Nyl. 4) New records are documented for: Cecidonia umbonella (new to Beringian Alaska), Cecidonia xenophana (new to Asia), Lecidea confluentula (new to Asia), Lecidea ecrustacea (new to Beringian Alaska), Lecidea lapicida (new to Kamchatka), Lecidea paupercula (new to Kamchatka and to Beringian Alaska), Lecidea plana (new to Alaska and Kamchatka), Lecidea swartzioidea (new to Kamchatka), Lecidea umbonata (new to Chukotka), Miriquidica deusta (new to Alaska), Miriquidica leucophaeoides (new to Alaska and Taimyr), Rimularia impavida (new to Alaska), and Schaereria fuscocinerea (new to mainland Alaska).