Physconia jacutica
Physconia jacutica is a species of saxicolous, foliose lichen in the family Physciaceae. It is found in the Russian Far East.
Taxonomy
The lichen was formally described as a new species in 2007 by Gennadii Urbanavichus, Teuvo Ahti, and Katileena Lohtander. The type specimen was collected on the bank of the Lena River near Elanka at an altitude of about. There the lichen was found growing abundantly on rocks at the base of a dolomitic cliff from the Cambrian. The habitat in that location is dry and hot with steppe-like vegetation. The authors note that among the high dolomite cliffs, the lichen "is so abundant that it gives a bluish-white tint to the whole landscape".Molecular phylogenetic analysis suggests that P. jacutica groups together in a clade with P. grumosa, P. lecuoleiptes, P. kurokawae, and P. muscigena.