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On stones and rocks on low rocky headland, Alt. 25 ft. Store Point, Neny Island, Marguerite Bay. Antarctic Peninsula, Fallieres Coast

North-facing crevice in loose scree, 50 degree slope, with Deschampsia antarctica, Alt. 74 m. gullies, 0.5 km. SW of Endurance Glacier, Elephant Island. South Shetland Islands

North facing exposed dry rock, Alt. 15 m. Rothera Point, Adelaide Island. Antarctic Peninsula, Loubet Coast

On mosses on north-facing scree slope, Alt. 100 ft. 50 yards SW of Drying Point, Signy Island. South Orkney Islands

On north-facing boulder, Alt. 50 ft. Near Drying Point, Borge Bay, Signy Island. South Orkney Islands

On rock fragments near gull nests, Alt. 50 ft. Largest of Thule Islands, Borge Bay, Signy Island. South Orkney Islands

On whale bone, lying on shore, Alt. c. 5 ft. Small bay, north of Sandebugten, west shore of Barff Peninsula. South Georgia

On drepanocladus uncinatus. Alt. 30m. Stone Chute (E side of Knife Point), Signy Island. South Orkney Islands

Very local, on surface of dead moss with other crustose lichens, Near the hut, Blaiklock Island, Loubet Coast. Antarctic Peninsula, Loubet Coast

Fairly dry, east-facing ledge on boulder, Alt. 327 ft. Summit of Scar Hills, Hope Bay. Antarctic Peninsula, Trinity Peninsula, East Coast

Along cracks and lines of weakness in upper surface of rocks, Alt. c. 450 ft. Andersson Nunatak, Hope Bay. Antarctic Peninsula, Trinity Peninsula, East Coast

On all upper surfaces of dry rocks or stones if above general 'washed' level, Alt. 135 ft. flat area on south side of Lake Boeckella, between lake and bottom of permanent snow and ice at foot of hill 433, Hope Bay. Antarctic Peninsula, Trinity Peninsula,

On upper and dry surface of stones and rocks, Alt. 135 ft. flat area on south side of Lake Boeckella, and ice at foot of hill 433, Hope Bay. Antarctic Peninsula, Trinity Peninsula, East Coast

On south facing hillside, Pendulum Cove, Deception Island. South Shetland Islands

Stones near cape pigeon nests, Alt. 20 ft. Above Knife Point, Borge Bay, Signy Island. South Orkney Islands

On concrete of whalers dam, Alt. 40 ft. Knife Point, Signy Island. South Orkney Islands

On nitrogenous greywacke outcrop facing west, Alt. 75 m. Behind Will Point, Royal Bay. South Georgia

On dead Sarconeurum in rock crevices. Alt. 50m. Humps Island, off NE James Ross Island Antarctic Peninsula

On crumbling scoria. Alt. 5-15m. Coast to E of Wensleydale Beacon. Deception Island. South Shetland Islands

On ?seal bone. Alt. 25m. c.1km W of Cape Wiman, Seymour Island. Antarctic Peninsula

With Physconia muscigena on Drepanocladus uncinatus. Alt. 100 m. NW side, Cape Tuxen. Antarctic Peninsula

Shore rocks just above high water mark. Alt. 1-2m. Punta Bulnes, Brunswick Peninsula, Magellanes. South America, Chile

On moss, sheltered damp habitats on west side of nunatak, Lully Foothills, Alexander Island. Antarctic Peninsula, Alexander Island

On peat amongst Acaena/Festuca association, on exposed, east-facing ridge, Alt. c. 250 ft. Between Koppen Point and south end of Sacramento Bight. South Georgia

On horizontal or slightly E sloping rock, dry. Alt. 50m. Wensleydale. Deception Island. South Shetland Islands

On dry sandy soil. Gondwana Base area, Victoria Land. Antarctica, Ross Sector

On dry moss (Ceratodon purpureus). Alt. 85 m. Harrow Peaks, Victoria Land. Antarctica, Ross Sector

Dry soil amongst stones. Alt. 100 m. Coal Nunatak, Alexander Island. Antarctic Peninsula, Alexander Island

On dead moss (Bryum argenteum). Alt. 5-10 m. South east end of Inexpressible Island, Victoria Land. Antarctica, Ross Sector

On dead moss on dry ledge, Alt. 25 m. Andree Island, Charlotte Bay. Antarctic Peninsula, Danco Coast

Dry sandy soil and moribund moss. Alt. 10 m. Horseshoe Island, North Marguerite Bay. Antarctic Peninsula, Fallieres Coast

On soil. Cape King, Victoria Land. Antarctica, Ross Sector

In crack on N facing Granite ridge, Alt. 800ft. Jones mts on ridge W of Pillsbury Tower, Eights Coast. Antarctica, Byrd Sector

Dry sandy soil and moss. Alt. 90-100m. Haupt Nunataks. Budd Coast. Antarctica, Wilkes Sector

On Sarconeurum glaciale. Vestfold Hills, Mossel Valley area. Ingrid Christensen Coast. Antarctica, Enderby Sector

Soil and dead moss near shore of melt lake frequented by large number ofnon-breeding Skuas. Alt. 50m. NE of Stevenson Cove, Clark Peninsula. Budd Coast. Antarctica, Wilkes Sector

'Petrel's Rest' Alt. 326 m. Robertskollen, Western Dronning Maud. Antarctica, Maud Sector

On Andreaea. Alt. 80 m. To west of Spindrift Col, Signy Island South Orkney Islands

On dry non-nitrogenous boulder. Alt. 30 m. Near waterfall on south-west side of Whale Valley, Royal Bay. South Georgia

In shallow cracks in gneiss bedrock, Alt. c850m. Haag Nunatak, Ronne Ice Shelf, N of Sentinel Ridge, Ellsworth Land. Antarctica, Scotia Sector

Heated moist cindery ground of upper beach, c. 10 m from shore line, surface temp 20 deg C in air temp of 0 deg C, Alt. 2-3 m. Pendulum Cove, Deception Island. Deception Island. South Shetland Islands

Alt. 10-25m. Above shore, 1.5km W of Collins Point. Deception Island. South Shetland Islands

Moss clumps on outwash fan at base of slope. Alt. 30 m. Reef Point, Cook Island. South Sandwich Islands

On dry rock in crevices and on gravel, Alt. 20-30 m. Area between Lystad Bay and former BAS Station, Horseshoe Island. Antarctic Peninsula, Fallieres Coast

Amongst Rostkovia in swamp, Alt. c. 350 ft. South shore of large lake in northern part of Bore Valley, Cumberland West Bay. South Georgia

Damp overhanging rock, Alt. 70 ft. West side of Uruguay Island, Argentine Islands, Graham Coast. Antarctic Peninsula, Graham Coast

Growing on rocky bank, Alt. 50 ft. Plateau near centre of island, Avian Island, near Adelaide Island. Antarctic Peninsula, Fallieres Coast

Moist soil below marble outcrop on steep N-facing slope. Alt. 50 m. Ridge to N of Thulla Point, Signy Island. South Orkney Islands

Crevice in cliff. Alt. 100 m. E side of Rusty Bluff, above Paal Harbour, Signy Island. South Orkney Islands

Edge of seepage area, Alt. 50 ft. Paal Harbour, Signy Island. South Orkney Islands