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Upper surface of large flat summit rocks, Alt. 886 ft. Nobby Nunatak, Hope Bay. Antarctic Peninsula, Trinity Peninsula, East Coast

On eastern summit on flat rock, Alt. 3675 ft. A 0.75 mile ridge running south-east, then south and back to south-east, south of Bingham Glacier. Antarctic Peninsula

Facing north-east on low sloping loose rock, Alt. 3375 ft. Ridge running east-west then south-north, south of Bingham Glacier. Antarctic Peninsula

On cobble-paved raised beach, Alt. 50 ft. East coast Jenny Island, Laubeuf Fjord. Antarctic Peninsula, Fallieres Coast

Lying on surface amongst open loose rocks, damp in shaded hollow, Alt. 2400 ft. Ridge on north of Guard Glacier. Antarctic Peninsula

On flat top rock or boulders, Alt. 10 m. North side of Millerand Island, Marguerite Bay. Antarctic Peninsula

Intertidal Transvaal Cove, Marion Island. Prince Edward Islands

Quartzite stones and rock slabs, Alt. 15-65 m. South end of Beauchene Island. Falkland Islands

In nitrogenous melt trickle on north-facing cliff, Alt. 10 m. South shore of Rogged Bay. South Georgia

On rocks submerged in pools just above sea level, Alt. 0 m. Midway between Calf Head and Cape Harcourt, Sacramento Bight. South Georgia

Rocks in splash zone on shore, Alt. 2 m. Bay west of Cape Charlotte, Royal Bay. South Georgia

Boulders at high water mark, Alt. 1 m. North-west side of Esbensen Bay. South Georgia

On dry windswept stones and boulders. Alt. 660 m. Summit of Mt. Maria, Port Howard, Falkland Islands. Falkland Islands

On rocks on hill to south of hut. Alt. 50 m. Blaiklock Island. Antarctic Peninsula, Loubet Coast

On boulder dominated by Usnea sphacelata. Alt. 20 m. N end of Rothera Point (SSSI), Adelaide Island. Antarctic Peninsula

In crevice devoid of sun, others on same rock facing north-west, Alt. 4000 ft. The north-west spur of Abendroth Peak. Antarctic Peninsula

On west-facing slope of nunatak, but more often on south-side of rock slabs out of wind, with snow lying in lee of rocks, Alt. 750 m. Lully Foothills, Alexander Island. Antarctic Peninsula, Alexander Island

On various rocks, below late snow beds. Alt. 25 m. Apostrophe Island, Victoria Land. Antarctica, Ross Sector

Most westerly of Corner Islands, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

On dry slightly nitrogenous north-facing boulder, Alt. 20 m. South shore of Rogged Bay. South Georgia

On boulders on north-west facing slope, Alt. 100 ft. Largest hill on Gourlay Peninsula, Signy Island. South Orkney Islands

On stones, Alt. c. 350 ft. Summit of hill between Factory Cove and Paal Harbour, Signy Island. South Orkney Islands

Exposed boulder facing west, Alt. 600 ft. Moraine by rock buttress at SE side of Sunshine Glacier, Coronation Island. South Orkney Islands

On boulders, Alt. 500 ft. Cape Tuxen, Graham Coast. Antarctic Peninsula, Graham Coast

NE-facing rock. Alt. 325m. 15m below summit, Breccia Crag, E end; Coronation Island. South Orkney Islands

High tephra cliff extensively covered with Usnea sp.. Alt. 175-200 m. To west of Entrance Point above Chinstrap penguin colony, Deception Island. South Shetland Islands

North facing rocks, Alt. 50 ft. West of windscoop, Galindez Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

South-west facing, steep rocky slope, Chorisodontium banks starting at 50 ft. and continuing onto top of cliffs, Alt. 50-200 ft. Point Rae, Scotia Bay, Laurie Island. South Orkney Islands

On dry, north-facing cliff, Alt. 10 m. Cliff at south end of Binder Beach, Right Whale Bay. South Georgia

North facing rocks, Alt. 200 ft. Observation Bluff, Signy Island. South Orkney Islands

On bare rocks projecting through Pohlia mat, Alt. 100 ft. By western end of eastern lagoon, Candlemas Island. South Sandwich Islands

Boulder in waterfall issuing from lake. Alt. 100 m. Crater Cirque, Victoria Land. Antarctica, Ross Sector

Chile, Prov. de Nuble, Recinto, Las Trancas, El Purgatorio, in radicibus rupis ad catharractarum, 1200 m.s.m. South America, Chile

In Drepanocladus mat, Alt. 80 m. North base of Three Brothers Hill, King George Island. South Shetland Islands

Rocks at sea-level, Alt. 0 m. Outcrops on West side of Bjornstadt Bay. South Georgia

Sheltered cliff face, Alt. 7 ft. Outer Island, Borge Bay, Signy Island. South Orkney Islands

Dry rocks influenced by birds, Alt. 35-50 m. Emperor Island, Dion Islands, Fallieres Coast. Antarctic Peninsula, Fallieres Coast

On moss and gravel. Alt. 150 m. Kay Island, Victoria Land. Antarctica, Ross Sector

Dry granitic sand. Alt. 5-10 m. South east end of Inexpressible Island, Victoria Land. Antarctica, Ross Sector

On large rock. Flat to rolling slope. Soil fairly dry. Mix of large rocks, smallrocks, stones, lappili. Alt. 9m. By lake behind Argentine Station. Deception Island. South Shetland Islands

Dry gravelly soil. Apostrophe Island, Victoria Land. Antarctica, Ross Sector

On moss (Schistidium antarctici) in sheltered rock depressions. Alt. 20m. Whitney Point, Clark Peninsula. Budd Coast. Antarctica, Wilkes Sector

Wet dwarf shrub heath. Chartres Horse Paddock, West Falkland. Falkland Islands

On verge in Agrostis capillaris dominated neutral grassland. Chartres Horse Paddock, West Falkland. Falkland Islands

Festuca contracta grassland. Maiviken South Georgia

On flat rocks. Port Lockroy. Antarctic Peninsula, Danco Coast

On moss, crevices and gullies. Low, flat topped unnamed peninsula, Lazarev Bay, NW Alexander Island Antarctic Peninsula, Alexander Island

From reindeer exclosure number 3 in Sorling Valley. South Georgia

Empetrum rubrum dominated dwarf heath with < 50% ground cover Chartres Horse Paddock, West Falkland. Falkland Islands

On very wet mossy banks and cliffs. Alt. 100 ft. Puerto Vancouver. South America, Tierra del Fuego