Anthracoidea rupestris on Carex rupestris. A Habit (C-F-111312) B, C spores in LM, in median and surface view, respectively (C-F-111312) D–F spores in SEM (D leg. Å. Jensen, s.n., C-Greenland herb., s.n.; E, F leg. T. Sørensen, s.n., C-Greenland herb., s.n.) G distribution map. Scale bars: 0.5 cm (A); 10 µm (B, C); 5 µm (D–F); 500 km (G).