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On rock faces in Usnea fasciata community. Alt. 120 m. Siodlo (=saddle) Hill in Baranowski Glacier, Admiralty Bay, King George Island. South Shetland Islands

On rock face by shore. Alt. 4 m. Vaureal Peak, Admiralty Bay, King George Island. South Shetland Islands

Overgrowing moss and rock. Alt. 15m. Three Lakes Valley, to S of Knob Lake, Signy Island. South Orkney Islands

On black moss boulder slope, below west-facing cliff, Alt. 30 m. Metchnikoff Point, Brabant Island. Antarctic Peninsula

On dry cushion of Grimmia cf. donniana. Alt. 25m. E side Lachman Crags, James Ross Island. Antarctic Peninsula

On moss (Schistidium sp.), on dry stony margins of solifluction lobes. Alt. 2-3 m. Near West shore of Ablation Lake to S. of main stream, Ablation Valley, Alexander Island. Antarctic Peninsula, Alexander Island

On rock, Alt. 138 m. slopes behind shore 3 km. SW of Walker Point, Elephant Island. South Shetland Islands

Schistose rocks on dry west-facing ridge, Alt. 340 m. Summit to north of Hill 1941, south of Dartmouth Point, Cumberland East Bay. South Georgia

On dry non-nitrogenous south-facing soliflax on slope, Alt. 60 m. 1 km west of Koppen Point, Royal Bay. South Georgia

Mossy rock ledges facing west, Alt. 700 ft. Rock buttress at SE side of Sunshine Glacier, Coronation Island. South Orkney Islands

Dry rock faces, Alt. c. 450 ft. Below summit of Rusty Bluff, above Paal Harbour, Signy Island. South Orkney Islands

On stones at margin of stone stripe, Alt. c. 400 ft. Between Cummings Cove and Gneiss Hills, Signy Island. South Orkney Islands

On boulders on scree slope. Alt. 50 m. Mountain ridge called Cytadela, Golden Cove, Ezcurra Inlet, Admiralty Bay, King George Island. South Shetland Islands

South facing scree slope, Alt. 20-250 ft above shelf ice, 8 miles NE of Caution Point, Oscar II Coast. Antarctic Peninsula, Oscar II Coast

South facing scree slope, Alt. 25-250 ft above ice shelf, 8 miles NE of Caution Point, Oscar II Coast. Antarctic Peninsula, Oscar II Coast

On moist gravelly soil. Alt. 80m. Valley N of St Martha Cove, James Ross Island. Antarctic Peninsula

On stones. Alt. 125 m. Summit area, Marion Nunatak, Charcot Island. Antarctic Peninsula

Stones in melt channels and seepage area. Alt. 150m. Mars Oasis, Alexander Island. Antarctic Peninsula, Alexander Island

On soil and dead moss in crevices in rock outcrops. Alt. 400-500 m. Cliffs below summit of Pyramid, Fossil Bluff, Alexander Island. Antarctic Peninsula, Alexander Island

On moss (Andreaea) on rock ledge. Alt. 100 m. Above Factory Cove, Signy Island. South Orkney Islands

On silty soil and moss Alt. 15m. Broad valley to S of St Martha Cove, James Ross Island. Antarctic Peninsula

On soil and dead moss, at margin of sorted circles. Alt. 400 m. Scarab Ridge Plateau, Fossil Bluff, Alexander Island. Antarctic Peninsula, Alexander Island

Floor of ditch, Alt. 40 ft. One mile south-west of Rookery Bay, East Falkland Islands. Falkland Islands

Amongst Juncus and grasses in flush, Alt. c. 50 ft. Near Kanin Point, Husvik, Stromness Bay. South Georgia

On scree with several other specimens, N face, Alt. 800ft. Jones mts on ridge W of Pillsbury Tower, Eights Coast. Antarctica, Byrd Sector

Alt. 1181 m. 'Long Ridge', Hauberg Mountains, Ellsworth Land. Antarctica, Scotia Sector

On nunatak. Alt. 1330 m. 2 km NE of camp, Bean Peaks, Ellsworth Land. Antarctica, Scotia Sector

Slope to W of crater SW of Collins Point. 15-130m. Deception Island. South Shetland Islands

Exposed north spur of hill. Alt. 300 m. Vapour Col, Deception Island. South Shetland Islands

In cracks and around edge of stones. West side of Starr Nunatak. Antarctica, Ross Sector

In the most nutrient rich areas, especially in the central area on the west slope of Kay Island. Antarctica, Ross Sector

In damp places alongside small lake above Gondwana station. Gerlache Inlet. Antarctica, Ross Sector

Half a metre from a chinstrap nest. Alt. 5-10 m. Baily Head, Deception Island. South Shetland Islands

Mud/rock surface. Alt. 200 m. Macaroni Point, Deception Island. South Shetland Islands

Moraine by the side of Mackay Glacier. Alt. 590 m. Northern bottom of Mt. Suess, Victoria Land. Antarctica, Ross Sector

On dry basalt rocks. Alt. 275 m. Jardine Peak, Ezcurra Inlet, Admiralty Bay, King George Island. South Shetland Islands

On bird-perching rocks by shore. Alt. 10 m. Emerald Point, Cardozo Cove, Ezcurra Inlet, Admiralty Bay, King George Island. South Shetland Islands

On ground among rocks. Alt. 260 m. Jardine Peak, Ezcurra Inlet, Admiralty Bay, King George Island. South Shetland Islands

On boulder scree slope. Alt. 270 m. Jardine Peak, Ezcurra Inlet, Admiralty Bay, King George Island. South Shetland Islands

Rocks, Top of gap behind Wensleydale Beacon, Deception Island. South Shetland Islands

Rock outcrop, Alt. 200 ft. Near Survey station, Day Island. Antarctic Peninsula, Loubet Coast

Greenwich Island. South Shetland Islands

On wet soil, Alt. 50 ft. Rock outcrops to south of The Canache, Port Stanley Harbour, East Falkland Islands. Falkland Islands

On wood debris, Alt. 85 ft. East slopes of hill between Factory Cove and Paal Harbour, Signy Island. South Orkney Islands

Cormorant Island, Danco Coast. Antarctic Peninsula, Danco Coast

Moist, north-facing runnel, Litchfield Island, Arthur Harbour, Anvers Island, Danco Coast. Antarctic Peninsula, Danco Coast

Damp ledge, Alt. 20 ft. Skua Creek, Skua Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

Alt. 50 ft. The Windscoop, Galindez Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

On exposed humus, Alt. 20 ft. Skua Creek, Skua Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

Moist sheltered areas in Dicranum turfs, Alt. 50 ft. Litchfield Island, Arthur Harbour, Anvers Island, Danco Coast. Antarctic Peninsula, Danco Coast