LICHENS AND MOSSES FROM THE KAR PLATEAU, SOUTHERN VICTORIA LAND, ANTARCTICA

The Kar Plateau, southern Victoria Land, Antarctica, is an ice-free ar ea of about 4 km(2), at 600 m altitude, and covered with a frost-shatt ered felsenmeer. Mosses occur sporadically at low density on debris is lands (one species) and in sheltered rock crevices (four species). Lic hens (22 species) also occur throughout but with one area (0.1 km(2)) of exceptional richness. The plateau is a floristically rich locality for the latitude (near 77 degrees S). The new combination Rhizoplaca p riestleyi (Dodge) Seppelt is made to accommodate Omphalodina priestley i (Dodge) Dodge following earlier transfer of Omphalodina to Rhizoplac a. Phytogeography of the species in Antarctica is briefly discussed.