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A 400m long section of black shale at the centre of a 40km long heavily crevassed escarpment forming coastline of Ronne Ice Shelf. Alt. 630m. Cape Zumberge Antarctica, Scotia Sector

I Decepcion, Bahia I de Mayo. South Shetland Islands

On moist rock ledges above Argentine station Almirante Brown. Alt. 125 m. Coughtrey Peninsula, Paradise Bay, Danco Coast. Antarctic Peninsula, Danco Coast

Small scattered patches in sheltered depression, water seepage from glacier above, birds nesting. Alt. 60 m. Mushroom Island. Antarctic Peninsula, Fallieres Coast

Exposed flat rock outcrop, Alt. 30 ft. Tern Cove, Signy Island. South Orkney Islands

Waste ground, Stromness Whaling Station, Stromness Bay. South Georgia

North-west facing frost shattered basalt outcrop, some meltwater, evidence of bird feeding, but no guano, rock ledges and small areas of organic 'soil', cliff , Alt. 400 m. East side of Koch Glacier, Brabant Island. Antarctic Peninsula

On dry soil in sorted circles. Alt. 200 m. N side, Jenny Island. Antarctic Peninsula

En pantano litoral. Provincia Magallanes, Depto Ultima Esperanza, Margen oriental del Rio Serrano. South America, Chile

On wet rock face with northern aspect, Alt. 200 ft. Upper cliffs on north side of Observation Bluff, Signy Island. South Orkney Islands

Sobre monrenas frontales. Provincia Magallanes, Depto Ultima Esperanza, Margen Occidental de puerto Toro, glaciar del Cerro Balmaceda. South America, Chile

Cliffs with south-west aspect, Alt. 600 m. Maro Cliffs, Theron Mountains, Coats Land. Antarctica, Scotia Sector

Alt. 0 m. Trollhul. South Georgia

In north facing cracks, waterlogged and frozen, c. 100 yds from sea, Alt. 50 ft. Point east of Mount Bouvier, Adelaide Island. Antarctic Peninsula, Loubet Coast

On moss (Polytrichum strictum) on moist rock ledges. Alt. 125 m. Coughtrey Peninsula, Paradise Bay, Danco Coast. Antarctic Peninsula, Danco Coast

Alt. 10-300 ft. Cape Alexandra area, Bird Sound. South Georgia

Alt. 200-350 ft. Annenkov Island. South Georgia

Just above coastal region, slopes of Gazella Peak, Bird Island. South Georgia

On scree, rocks on tussock community. Alt. 0-350 ft. Cape Charlotte. South Georgia

On rock fragment. Alt. 1015 m. Rounded shoulder of hill on north-east flank of Henderson Glacier, Ellsworth Mountains. Antarctica, Scotia Sector

Ardley Island, Fildes Peninsula, King George Island South Shetland Islands

South of Henningsen glacier snout. South Georgia

Alt. 0-250 ft. Trollhul. South Georgia

Alt. 50-200 ft. Between Chaplin Head and Romerof Head. South Georgia

Nattriss Head. South Georgia

On cliffs. Alt. 50-200 ft. Paradise Beach. South Georgia

Cape Disappointment, opposite Green Island. South Georgia

Ile Amsterdam

Alt. c. 500 ft. Slopes of Gazella Peak, Bird Island. South Georgia

Moss banks on scree and moist slopes, Alt. 50 m. Wanderer Valley, Bird Island. South Georgia

Top of outcrop, sloping south-west, Alt. 17 m. South side of cliffs, Extreme east end of South Beaches, Byers Peninsula, Livingston Island. South Shetland Islands

North-facing, sheltered by boulder, Alt. 152 m. 2 Km. south-west of Endurance Glacier, Elephant Island. South Shetland Islands

In soil filled crevices at base of dry rocks, Alt. 1000 ft. East-facing slope of peak, near lake, north end of Bore Valley, Cumberland East Bay. South Georgia

Dry, north facing rocks, Alt. 400 ft. Valley running SW from Husvik, Stromness Bay. South Georgia

West-facing cracks just below summit, granite much weathered and cracks flowing with melt water. Alt. 1200 m. Henriksenskjera (spot 1296), Dronning Maud Land. Antarctica, Maud Sector

Sobre ramitas caidas en bosquecillo de Nothofagus betuloides. Provincia Magallanes, Depto Ultima Esperanza, Puerto bellavista, en la orilla oriental del rio de desague del Lago Azul. South America, Chile

On loose but level rocks and on any surface of bed-rock at summit, Alt. c. 2500 ft. Mountain on west side of Prince Gustav Channel, about 1 mile west of Striped Hill, Trinity Peninsula. Antarctic Peninsula, Trinity Peninsula, East Coast

On moist rock at streamside, Alt. 650 ft. South-facing scree slope of Roche Peak, Bird Island. South Georgia

Rocks and pebbles on gently sloping open ground facing north, Alt. 300 ft. Observation Bluff, Signy Island. South Orkney Islands

In Festuca-Chorisodontium community on damp, south-facing slope, Alt. 200 m. Hills to north of Gold Harbour. South Georgia

On gravelly ash at back of beach, c. 100 m from shore. Alt. 2 m. Pendulum Cove, Deception Island. South Shetland Islands

Antarctic Argentina, Cabo Primavera. Antarctic Peninsula

Clayey rock floor over scree though moss mostly covering rock, Alt. 300 m. Around margins of lava flow, in steep walled gulley facing NNW, Alexander Island. Antarctic Peninsula, Alexander Island

Scree and rocks. Alt. 100-150 ft. Near Trollhul. South Georgia

Scree slope. Alt. 350 ft. East facing side of north-south running central ridge of Fredriksen Island. South Orkney Islands

Moist rock shelf. Alt. 10m. NE Meier Point, Coronation Island South Orkney Islands

Moist soil in hollows, Alt. 5-20 m. Island in north-west of Faure Island group, Fallieres Coast. Antarctic Peninsula, Fallieres Coast

Slopes behind hut, Signy Island. South Orkney Islands

By Shackleton's Cross, Hope Point South Georgia

Maiviken, behind Tortula Cove. South Georgia