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Growing over the tops of Bryum algens in wet situations, Falla Bluff, MacRobertson Land. Antarctica, Enderby Sector

Growing in westerly aspect, Field Rock, MacRobertson Land. Antarctica, Enderby Sector

Flat rocks, 10 degree slope, facing N, below Petrel nests. Alt. 100ft. Bluffs behind Factory Cove, Signy Island. South Orkney Islands

Exposed dry moraine. Ablation Col. Antarctic Peninsula, Alexander Island

Pebbles on raised beach. Alt. 5 m. Inexpressible Island, Victoria Land. Antarctica, Ross Sector

Dry, fine-grained lava rock. Alt. 10-40 m. Edmonson Point, Victoria Land. Antarctica, Ross Sector

In fissures in coarse-grained granite. Alt. 5-10 m. South east end of Inexpressible Island, Victoria Land. Antarctica, Ross Sector

On stones. Alt. 1000 m. NW Daniell Peninsula, Victoria Land. Antarctica, Ross Sector

On weathered granite and volcanic erratics on hills to south of Terra Nova Bay Station. Antarctica, Ross Sector

On all rock types throughout the island. Inexpressible Island. Antarctica, Ross Sector

Dry surfaces on leeward sides of rocks and boulders, especially where moisturecollects or snow accumulates. Alt. 50m. Browning Peninsula, W side. Budd Coast. Antarctica, Wilkes Sector

Dry rock surfaces. Alt. 90-100m. Haupt Nunataks. Budd Coast. Antarctica, Wilkes Sector

Dry exposed boulders and stones. Loken Moraines, W moraine above Newcomb Bay. Alt. 140m. Budd Coast. Antarctica, Wilkes Sector

Meltwater channel on rock, Alt. 15 ft. Largest Island between Irizar and Uruguay Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

On dry, sheltered, steep, N facing nitrogenous rock slope. Alt. 10 m. South shore of Rogged Bay. South Georgia

On dry nitrogenous S facing outcrop. Alt. 3m. Low promontory just south of Leith whaling station, Stromness Bay. South Georgia

On dry, E facing, nitrogenous outcrop. Alt. 100 m. Small moraine midway between shore and glacier, 2 km S of Bertrab Glacier. South Georgia

Bird-perching rocks by shore, Alt. 5 m. c. 2 km south of Bertrab Glacier. South Georgia

Stony, S facing barren slopes, just above main Penguin colony. Alt. c. 200 m. South slopes of Vindication Island. South Sandwich Islands

Exposed rock on flat ground, Alt. 300 ft. Bluffs, behind Factory Cove, Signy Island. South Orkney Islands

On rock, Alt. 122 m. slopes behind shore 3 Km. SW of Walker Point, Elephant Island. South Shetland Islands

On rock face. Alt. 10-25 m. North side of Leonie Island. Antarctic Peninsula

Amphibolite rock. Alt. 50 m. North side of Observation Bluff, Signy Island South Orkney Islands

On soil in cracks of rocks, Alt. 80 ft. East side of hill between Factory Cove and Paal Harbour, Signy Island. South Orkney Islands

On dry rock and in crevices and on gravel, Alt. 6-10 m. Rock outcrops and scree adjacent to band of bright yellow rock and scree, south side of Lystad Bay, Horseshoe Island. Antarctic Peninsula, Fallieres Coast

Rock crevice, Alt. c. 100 ft. cliffs above Factory Cove, Signy Island. South Orkney Islands

Shade and underside of rocks, Alt. 100 m. Metchnikoff Point, Brabant Island. Antarctic Peninsula

Nitrogenous marine splash zone rocks, facing east, Alt. 10 ft. Billie Rocks, Borge Bay, Signy Island. South Orkney Islands

Exposed dry sandstone on massive boulder. Alt. 150m. Upper moraine, Mars Oasis, Alexander Island. Antarctic Peninsula, Alexander Island

On pebbles and rocks in crevices. Towards summit, Shirley Island. Budd Coast. Antarctica, Wilkes Sector

Shaded rock crevices and ledges on leeward side of rocks. Alt. 20m. Whitney Point, Clark Peninsula. Budd Coast. Antarctica, Wilkes Sector

Rock crevices near bird nests. Alt. 25-70m. Peterson Island. Budd Coast. Antarctica, Wilkes Sector

On rocks and stones. Alt. 6-40 m. Rothera Point, Adelaide Island, Loubet Coast. Antarctic Peninsula, Loubet Coast

On stones in stream in penguin rookery. Alt. 30 m. North East shore of Doubtful Bay. South Georgia

On dry pebbles and rock fragments. Alt. 50 ft. Berntsen Point, Borge Bay, Signy Island. South Orkney Islands

Pebbles of raised Beach. Alt. 3m. Cecilia Island, English Strait. South Shetland Islands

Thin moss carpet. Point Thomas, King George Island South Shetland Islands

Wet areas with Drepanocladus and Bryum, Alt. 25 ft. Coastal region north of BAS station, Factory Cove, Borge Bay, Signy Island. South Orkney Islands

Gully separating east from west part of Petermann Island, Alt. 70 m. Graham Coast. Antarctic Peninsula, Graham Coast

On rocks in stream, Alt. 20 ft. Main stream running into south side Rosita Harbour. South Georgia

Coastal plain to west of Sealers Hill, Byers Peninsula, Livingston Island. Wet moss carpet on ashy soil. Alt.10-15m. South Shetland Islands

In wet hollow. Alt. 25m. North side of Woozle Hill, Galindez Island. Argentine Islands, Graham Coast. Antarctic Peninsula

Boggy Acaena slope, Alt. 20 ft. South-east of Grytviken, Cumberland East Bay. South Georgia

Forming continuous carpet of c. 60 x 20 m in damp basin, Alt. 10-25 m. Litchfield Island, Arthur Harbour, Anvers Island, Danco Coast. Antarctic Peninsula, Danco Coast

West-facing rock ledge. Alt. 45 m. Cuverville Island. Antarctic Peninsula, Danco Coast

Rock crevice/ledge, overhanging rock. Near meltwater stream. Alt. 25 m. Waddington Bay area, Cape Tuxen. Antarctic Peninsula, Graham Coast

Wet hollows, Cape Rasmussen, Graham Coast. Antarctic Peninsula, Graham Coast

Margin of very small melt runnel, forming cushions 15-20 cm. diam. on wet stones, Alt. c. 30 ft. Lecuyer Point, Wiencke Island, Danco Coast. Antarctic Peninsula, Danco Coast

Rock crevice with water dripping through, Alt. c. 50 ft. Galindez Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

Locally abundant in wet places, especially margins of pools and runnels, Alt. c. 50 ft. Hermit Island, Arthur Harbour, Anvers Island, Danco Coast. Antarctic Peninsula, Danco Coast