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Rocks and rock crevices of NW facing slopes. Alt. 100-200 ft. East of base hut, Cape Geddes, Laurie Island. South Orkney Islands

On rocks everywhere and bare ground, Alt. 250 ft. Factory Cove, Signy Island. South Orkney Islands

On drift and scree, Alt. 150 ft. Moraine Valley, Signy Island. South Orkney Islands

Exposed boulder faces above snow cover, Alt. 100 ft. Factory Cove, Signy Island. South Orkney Islands

Top of wet boulder on north-facing ledge, Alt. 50 ft. Factory Cove, Signy Island. South Orkney Islands

Rocks, Alt. 350 ft. Bottom of NW face of Mount Flora, Hope Bay, NE Coast of Trinity Peninsula. Antarctic Peninsula, Trinity Peninsula, East Coast

Inclined NW facing rocks, Alt. 150 ft. Ridge on south side of cove south of Foca Point, Signy Island. South Orkney Islands

On soil. Alt. 160 m. Fildes Bay, near Ardley Peninsula, King George Island. South Shetland Islands

Moraine soils and damp scree rocks, Alt. 750 ft. West side of Wave Peak Buttress, Coronation Island. South Orkney Islands

Damp cliff face facing south, Alt. 400 ft. North side of Sorling Valley. South Georgia

Alt. 700-850 ft. Between Shallop Cove and Holmestrand. South Georgia

Damp rocks, Alt. 150 ft. Near dam on slopes of Mount Duse, behind King Edward Point, Cumberland East Bay. South Georgia

Alt. 10-300 ft. West side of Taway Gap, north-west of Ryan Glacier. South Georgia

Alt. 25-250 ft. North-west of Schrader Glacier, Wilson Harbour. South Georgia

Moist rocks, especially amongst other species, of Andreaea, Alt. 200 ft. Behind Shackleton House, Cumberland East Bay. South Georgia

On dry ground among boulders in Usnea antarctica community on south-eastern slope. Alt. 60 m. Demay Point, Admiralty Bay, King George Island. South Shetland Islands

On dry bare earth in Polytrichum alpinum-Dprepanocladus unciatus community on southern slope. Alt. 50 m. Demay Point at Paradise Cove, Admiralty Bay, King George Island. South Shetland Islands

On dry bare earth in Usnea antarctica community. Alt. 30 m. Demay Point, Admiralty Bay, King George Island. South Shetland Islands

Scree on southern slope overgrown with Usnea fasciata. Alt. 90 m. Creeping slopes above Paradise Cove, Admiralty Bay, King George Island. South Shetland Islands

On ground among boulders on southern slope in Usnea antarctica community. Alt. 90 m. Rescuers Hills between Ecology Glacier and Sphinx Glacier, Admiralty Bay, King George Island. South Shetland Islands

On dry and exposed rock ledges on southern slope associated with Usnea antarctica. Alt. 40 m. Vaureal Peak, Admiralty Bay, King George Island. South Shetland Islands

In dry places among rocks on scree slope. Alt. 110 m. Mountain slope called Ubocz, south of Arctowski Station, Admiralty Bay, King George Island. South Shetland Islands

Dry and moist rock face, N side of island. Alt. 10-20 m. Cuverville Island. Antarctic Peninsula, Danco Coast

Moist rock ledges. Anchorage Island. Antarctic Peninsula

Dry exposed ridges on soil and rocks. Alt. 50-80 m. Aitcho Island. South Shetland Islands

Moist dry stony areas, scree, Alt. 20-200 m. West side Cape Hansen, Coronation Island. South Orkney Islands

Depressions in rocks and on rock terraces. Alt. 5-50 m. North side of Leonie Island. Antarctic Peninsula

Dry boulders and cliff face. Alt. 10-15m. North-west corner of Darboux Island, Argentine Islands, Graham Coast. Antarctic Peninsula

Soil and rocks, Alt. 15-50 m. To NE of Mount Alexander, Joinville Island. Antarctic Peninsula

On scree, Alt. 244 m. west side of bluff, 0.5 km. SW of Endurance Glacier, Elephant Island. South Shetland Islands

Loose rocky soil, Alt. 61 m. Cliff top, 0.5 km. south of Stinker Point, Elephant Island. South Shetland Islands

Rock crevice in moraine, Alt. 122 m. Cliff top, 0.5 km. south of Stinker Point, Elephant Island. South Shetland Islands

Stony soil, Alt. 305 m. SW of Endurance Glacier, Elephant Island. South Shetland Islands

On inclined rocks near western end of island, Alt. 50 ft. Avian Island, near Adelaide Island. Antarctic Peninsula, Fallieres Coast

Usually in fairly sheltered positions, mainly on vertical rocks, on rock outcrop, Alt. 50 ft. By Base, Adelaide Island. Antarctic Peninsula, Fallieres Coast

Between stones, Alt. 660 ft. Rusty Bluff, Signy Island. South Orkney Islands

Sheltered humus boulder, Alt. 500 ft. North ridge of Mount Demaria, SE of Cape Tuxen, Graham Coast. Antarctic Peninsula, Graham Coast

Rocks, Alt. 300 ft. North side of largest of Berthelot Islands, Graham Coast. Antarctic Peninsula, Graham Coast

On humus on rocks, Alt. 50 ft. The windscoop, Galindez Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

In a dank niche between some boulders on a south-facing slope, near the top of a ridge, Alt. 720 ft. Hope Bay, north-east coast of Trinity Peninsula. Antarctic Peninsula, Trinity Peninsula, East Coast

On ledges, near summit of steep dioritic outcrop, Alt. c. 250 ft. Most southerly of Guebriant Islands. Antarctic Peninsula, Fallieres Coast

Bahia Esperanza. Antarctic Peninsula, Trinity Peninsula, East Coast

Rocks, Alt. 30 ft. Cape Perez, Graham Coast. Antarctic Peninsula, Graham Coast

On granite surface, Alt. 15 ft. North side of an un-named island of The Barchans, Graham Coast. Antarctic Peninsula, Graham Coast

Faure Islands, Marguerite Bay. Antarctic Peninsula, Fallieres Coast

On rocks, Alt. 60 m. Western edge of flat area on top of rocks, SE of Clark Nunatak, South Beaches, Byers Peninsula, Livingston Island. South Shetland Islands

Rock outcrop, Megaw Island, Bennett Islands, Hanusse Bay. Antarctic Peninsula, Loubet Coast

North facing rock surface, Alt. 18 m. Galindez Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

In gravel, Alt. 5 m. Third peninsula from Depeaux Point, Petermann Island, Graham Coast. Antarctic Peninsula, Graham Coast

On rock ledges and on soil and gravel, Alt. 300 ft. Near the Divide, east side of Matthews Island. South Orkney Islands