VALLEY OP THE ST. LAWRENCE AND GREAT LAKES. 547 



Parnassia, Tourn. Grass of Parnassus. 

 P. parviflora, DC. 



Indigenous. Wet rocky shores of lakes and rivers. Borders of the River 

 St. Anne and River Jacques Cartier (Brunei). General around Lake Superior, 

 also at Red Bay, Lake Huron ; at Fort Edmonton on the Saskatchewan, and 

 at the Canon on Peace River (Macoun). Labrador (Butler). Sandy banks of 

 rivers in the Rocky Mountains (Drummond). 



P. palustris, L. 



Indigenous. Wet clay banks. Island of Anticosti (Brunet). Under the 

 bank at Fort Francis, Dawson Route ; Big Lake, west of Saskatchewan ; west 

 of the Arthabasca ; shore of Little Slave Lake (Macoun). Saskatchewan VaUey 

 (Bourgeau). 



P. Caroliniana, Michx. 



Indigenous. Crevices of rocks along rivers. Vicinity of Quebec ; Isle of 

 Orleans (Brunet). Banks of the rocky Saugeen, Durham (Logic). Sandwich 

 (Maclagan). Two miles south of London (Saunders). Crevices of rocks, 

 Niagara Falls ; Presqu' isle Point, Lake Ontario ; Pott's Mill Dam, Brighton, 

 Northumberland County; Red Bay, shore of Lake Huron (Macoun). McLeod's 

 Harbour, Cockburn Island (Dr. Bell). 



Saxifraga, L. Saxifrage. 

 S. oppositifolia, L. 



Indigenous. Moist rocks. Island of Anticosti (Goldie). Labrador (Butler). 

 Cariboo Mountains (Macoun). Rocky Mountains (Bourgeau). Newfoundland 

 and to the shores of the Arctic Sea and to Kotzebue Sound (Torr. & Gray). 



S. aizoides, L. 



Indigenous. Wet rocks and borders of streams. Newfoundland, Labrador, 

 Greenland and the Island of Anticosti, and to the Arctic Sea (Torr. & Gray). 

 Alpine Rivulets in the Rocky Mountains (Bourgeau). Labrador (Butler). 

 Newfoundland (Dr. BeU). 



S. tricuspidata, Retz. 



Indigenous. Rocks along lakes and streams. North shore of Lake Superior 

 (Agassiz). Rocks at the Peace River Canon ; and on rocks at Stewart's Lake, 

 Upper British Columbia (Macoun). Rocky Mountains (Bourgeau). Arctic 

 and Sub-Arctic America ; Hudson's Bay and Lake Winnipeg (Hooker), 



S. caespitosa, L. 



Indigenous. Perennial, caespitose ; leaves glandular-pubescent, 3-5 cleft, 

 the upper liaear and entire, segments broadly linear, obtuse ; flowering stems 

 with a few scattered leaves, glandular 1-4 flowered ; calyx-tube adherent to 

 the ovary ; petals white, obovate, 3-nerved, twice the length of the calyx. — 

 Hook. Fl. Bar. -Am. 1 p. 2IfJf. On sandy places. Fortean Bay, Labrador 

 (Butler). Arctic America from Greenland to Behring Strait. Vancouver 

 Island (Macoun). 



S. Aizoon, Jacq. 



Indigenous. Moist rocks. Upper Falls on the River du Loup (Dr. Thomas). 

 North shore of Lake Superior (Agassiz). Rocks four miles north of Michipi- 



