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On stone. Alt. 400 m. Colbert Mountains, Alexander Island. Antarctic Peninsula, Alexander Island

Dry exposed rocks. Summit of Coal Nunatak, Alexander Island. Antarctic Peninsula, Alexander Island

Exposed rock on lower part of Olreg's Ridge. Alt. 500 m. Offset ridge, Alexander Island. Antarctic Peninsula, Alexander Island

Stones and rocks on hill to south of hut. Alt. 50 m. Blaiklock Island. Antarctic Peninsula, Loubet Coast

Dry rocks. "Gondwana Lake", Victoria Land. Antarctica, Ross Sector

Dry rocks on ridge near lake. Alt. 75-90 m. "Gondwana Lake", Victoria Land. Antarctica, Ross Sector

Rocks near lake margin. "Gondwana Lake", Victoria Land. Antarctica, Ross Sector

In cracks ledges and flat areas, on a north-facing scarp, also in cracks in bedrock, Alt. 5550 ft. A small knoll of basic gneiss, c. 50 ft. high, to the east of Welch Mountains. Antarctic Peninsula

On rock near pool. Summit of Daniell Peninsula, Victoria Land. Antarctica, Ross Sector

On rock. Summit of Daniell Peninsula, Victoria Land. Antarctica, Ross Sector

On rock near pond. Summit of Daniell Peninsula, Victoria Land. Antarctica, Ross Sector

On stones, Mars Oasis Antarctic Peninsula, Alexander Island

On stones. Alt. 1213 m. First false summit on S tip of W limb of Mt Wasilewski, Ellsworth Land. Antarctica, Scotia Sector

On rock. Alt. c. 1200 m. Poorly exposed scree ridge, c. 3.8 km from Lyon Nunataks, Ellsworth Land Antarctica, Scotia Sector

Growing on sorted volcanic scree. Alt. 180 m. North East facing slopes, Hamilton Point, James Ross Island Antarctic Peninsula, Trinity Peninsula, East Coast

Along flat, in hollows, along lip, under stones and other damp places, Alt. 4100 ft. Low spine running approx. west to east towards Stockton Peak. Antarctic Peninsula

Lying amongst loose stones, on broad part of south-facing ridge, Alt. 4600 ft. Ridge running north in eastern area of Giannini Peaks. Antarctic Peninsula

Amongst small loose stones on low flat spur facing north, Alt. 2300 ft. On the northern spur from the end of the north-east ridge of Mount Hills. Antarctic Peninsula

On granite rock. Quilty Nunatak, WNW of Hauberg Mts, Orville Coast. Antarctica, Scotia Sector

North end of Coal Nunatak, Alexander Island. Antarctic Peninsula, Alexander Island

On soil, north end of Coal Nunatak, Alexander Island. Antarctic Peninsula, Alexander Island

On shaded boulder. Marion Nunataks, Charcot Island. Antarctic Peninsula

On stones and rock. Marion Nunataks, Charcot Island. Antarctic Peninsula

Boulders in scree. North side of Leonie Island. Antarctic Peninsula

Shaded sides/undersides of boulders in gully. Alt. 15 m. N end of Rothera Point (SSSI), Adelaide Island. Antarctic Peninsula

On metamorphic gneisses, SW Parmelee Massif, Graham Land. Antarctic Peninsula

Dome summit, Fossil Bluff, Alexander Island. Antarctic Peninsula, Alexander Island

Offset Ridge, Mesa summit, Alexander Island. Antarctic Peninsula, Alexander Island

Plateau E of N-S sphinx stream, Fossil Bluff, Alexander Island. Antarctic Peninsula, Alexander Island

On red rocks, Viking Valley. Antarctic Peninsula

Windswept boulders. Alt. 1000 m. NW Daniell Peninsula, Victoria Land. Antarctica, Ross Sector

On moss cushions (Tortula princeps). Alt. 100 m. Crater Cirque, Victoria Land. Antarctica, Ross Sector

Growing on stones on an exposed site on the top of a black lava hillock. Exposed to the wind. Alt. 40 m. Near East Cape, Prince Edward Island. Prince Edward Islands

Growing in a large patch on a rock in an Acaena magellanica vegetation on an E-facing slope. On a damp sheltered site with Parmelia sp. Alt. 40 m. Golden Gate, Prince Edward Island. Prince Edward Islands

West facing cliffs, Alt. 30 ft. Knife Point, Signy Island. South Orkney Islands

On exposed, dry, schistose rock facing west, Alt. 300 m. Rocks to west of summit, Brown Mountain, Cumberland East Bay. South Georgia

On talas boulders below escarpment, West coast between Kaalkop and Furseal Bay, Marion Island. Prince Edward Islands

On timber boardwalks within station. Alt. 35 m. Research Station, Transvaal Cove, Marion Island. Prince Edward Islands

On damp mud/ash. Alt. 200 m. Half way between Mt. Goddard and Mt. Pond, Deception Island. South Shetland Islands

Alt. 361 m. Colbert Mts, Alexander Island. Antarctic Peninsula, Alexander Island

On timber of chapel. Alt. 75 m. Plateau area, Cape Horn. South America, Chile

On Chorisodontium aciphyllum above tussock zone. Alt. 100 m. Bird Island South Georgia

On dark coloured rocks, often with Umbilicaria. Vegetation Island. Antarctica, Ross Sector

South end of Vegetation Island. Antarctica, Ross Sector

At edges of polygons on exposed volcanic plug with surface of loose scoria. Alt. 200 m. Cape Phillips. Antarctica, Ross Sector

In lee of boulders or in snowpatch depressions, confined to N aspects. Small volcanic cone with crater lake. Alt. 810 m. Daniell Peninsula. Antarctica, Ross Sector

On quartz, on an exposed area of moraine. Cape Sastrugi. Antarctica, Ross Sector

On patterned ground beside small lake above Gondwana station. Gerlache Inlet. Antarctica, Ross Sector

Growing on rock on an exposed site on the top of a black lava hillock. Alt. 40 m. Near East Cape, Prince Edward Island. Prince Edward Islands

Boulders of old grey lava succession. Alt. 350 m. Piew Crags, Marion Island. Prince Edward Islands