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Margin of stone stripe, Alt. 150 ft. Moraine Valley, Signy Island. South Orkney Islands

Gravelly soil, Alt. 25-100 ft. Meier Point, Coronation Island. South Orkney Islands

On the boulder and block strewn rock apron of the scree slopes. Alt. c. 750 ft. Mt. Flora, Hope Bay, north east coast of Trinity Peninsula. Antarctic Peninsula, Trinity Peninsula, East Coast

In niches and joint planes of the bedded volcanics, Alt. 0-100 ft. near the base hut, southern end of Adelaide Island. Antarctic Peninsula, Fallieres Coast

Fine volcanic ash at base of boulders, Alt. 100 ft. Finger Point, Visokoi Island. South Sandwich Islands

Forming small patches in outer zone of fumarole, Alt. 100 ft. Finger Point, Visokoi Island. South Sandwich Islands

Steep, north facing, flushes, rather unstable slopes below cliffs, Cathedral Crags, Deception Island. South Shetland Islands

Flat, sheltered, stony ground, Alt. 100 ft. Foot of valley on NW side of Mount Flora, Hope Bay, NE Coast of Trinity Peninsula. Antarctic Peninsula, Trinity Peninsula, East Coast

On soft ash, Mount Pond glacier, Deception Island. South Shetland Islands

Soil near melt stream in gully above "Adelie Lake". Alt. 35 m. Edmonson Point, Victoria Land. Antarctica, Ross Sector

On dry rock. Alt. 100m. S Abernethy Flats (5km SSE from SW corner of Brandy Bay); near large lake, James Ross Island. Antarctic Peninsula

North-facing cliffs, Alt. c. 50 ft. Above the base, Factory Cove, Signy Island. South Orkney Islands

Alt. 35 m. 750 m west of Baily Head, Deception Island. South Shetland Islands

Colonizing recently deglaciated gravelly soil. Alt. 160m. Jane Col, Signy Island. South Orkney Islands

Alt. c. 10 ft. South of Drying Point, Signy Island. South Orkney Islands

Dry scoria surface, moss in small clumps between the lumps of scoria (1-1.5" diam.) and below the level of the top scoria surface. Alt. 5-8m. Dry scoria plain to the S of the northern lake. 50m from sea. Deception Island. South Shetland Islands

On soil amongst stones, Alt. c. 30 ft. near the hut, Blaiklock Island, Loubet Coast. Antarctic Peninsula, Loubet Coast

Frequent on mineral soil, associated with Drepanocladus, Bryum and Tortula, Alt. c. 25 ft. Port Lockroy, Goudier Island, Danco Coast. Antarctic Peninsula, Danco Coast

Moist hollow, Alt. 100 ft. Promontory west of John Peaks, Powell Island. South Orkney Islands

Rock ledge above penguin colony, Alt. 400 ft. South side of Coffer Island Bay, Matthews Island. South Orkney Islands

Ash plain 50 m north of southern lake on "new island" in Telefon Bay; influenced by non-breeding skuas. Alt. 3 m. Deception Island. South Shetland Islands

Stony ground on top of knoll, Alt. 50 ft. NW corner of island, Galindez Island, Argentine Islands. Antarctic Peninsula, Graham Coast

Alt. 100-125m. Geothermal area on ridge above W. side of Lake Irizar. S.W. Fumarole Bay, Deception Island. South Shetland Islands

Dry, exposed pebbles, level aspect, Alt. 3 m. Rothera Point, Adelaide Island. Antarctic Peninsula, Loubet Coast

Rocky area, Alt. 15 ft. West side of Skua Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

On stony humus, on rock ledge, Alt. 70 ft. Cape Perez, Graham Coast. Antarctic Peninsula, Graham Coast

On wet stony and gritty soil, between boulders, Alt. c. 150 ft. near SW shore of Lake Boeckella, Hope Bay. Antarctic Peninsula, Trinity Peninsula, East Coast

Dry gravelly corner at east side of summit rocks where Alt. c. 118 ft. south shore of Hut Cove, Hope Bay, Trinity Peninsula. Antarctic Peninsula

Damp hollow among rocks in gully, Alt. 50 ft. Rock out crop near the base, Adelaide Island. Antarctic Peninsula, Fallieres Coast

Forming a thin hummocky crust on ash knoll, Alt. c. 150 ft. Top of ash bank, south of western lagoon, Candlemas Island. South Sandwich Islands

Soil on slope below tephra cliffs. Alt. 100 m. Fumarole Bay, Deception Island. South Shetland Islands

Dry gravelly soil. Alt. 3-80 m. Aitcho Island. South Shetland Islands

Dry fine sandy soil colonising area below receding ice patch. Alt. 2 m. East beach, Rothera Point, Adelaide Island. Antarctic Peninsula

Dry sandy soil between rocks near base huts. Alt. 10 m. Horseshoe Island, North Marguerite Bay. Antarctic Peninsula, Fallieres Coast

Moist seepage area in broad valley, below late snow bed. Alt. 15 m. Edmonson Point, Victoria Land. Antarctica, Ross Sector

Moist soil in rock crevice. Alt. 50m. Browning Peninsula, W side. Budd Coast. Antarctica, Wilkes Sector

On edge of rock. Alt. 1347 m. Wakefield Mt. Antarctic Peninsula

Bosquecillo laxo mixto de Nothofagus antarctica. Provincia Santa Cruz, Depto Guer Aike. Alredores de la Estancia Ojo de Agua. South America, Argentina

Very short on soil. Alt. c. 30m. SSSI area, Bailey Peninsula. Budd Coast. Antarctica, Wilkes Sector

Fine soil below late snow bed. Alt. 50 m. Upper terrace of North Valley, Edmonson Point, Victoria Land. Antarctica, Ross Sector

Damp valley floors below late snowbeds. Alt. 10 - 30 m. Edmonson Point, Victoria Land. Antarctica, Ross Sector

On shelf on steep-sided, south-facing, granite bluff, Alt. 1800 ft. South side of Cape Casey, Cabinet Inlet, Foyn Coast, east shore of Antarctic Peninsula. Antarctic Peninsula, Foyn Coast

Dry crevices in rock face. Alt. 100 m. Crater Cirque, Victoria Land. Antarctica, Ross Sector

On moist rock ledge. Alt. 20 m. North side of Leonie Island. Antarctic Peninsula

Crater Cirque, coastal Victoria Land. Antarctica, Ross Sector

On lake shore, aspect N-facing. Alt. c. 30 m. Crater Cirque. Antarctica, Ross Sector

Ash soil and pebbles below late snow bed - towards dry end of gradient. Alt. 15 m. Central Basin area, Edmonson Point, Victoria Land. Antarctica, Ross Sector

Dry crevice, Alt. 25 m. Andree Island, Charlotte Bay. Antarctic Peninsula, Danco Coast

Camino a Lapataia, Tierra del Fuego. South America, Argentina

Forming a large almost pure patch (at least 4 sq. m.) in gently sloping Rostkovia magellanica - Tortula robusta bog, large amount of gelatinous alga dominating the understorey nearby, Alt. c. 100 m. c. 2 km SE of Dartmouth Point. South Georgia