43. G. obtusum, (Lindb.) Pearson.
Casia obtusa, Lindb.; Pearson's List, No. 132.
Near Frederickshaab, Greenland. (r. Vahl.) On rocks, mountains north of Griffin Lake, B.C., August, 1889; on rocks, Mount Benson, near Nanaimo, Vancouver Island, July, 1893; on rocks, Pier's farm, Victoria, Vancouver Island, May, 1893. (Macoun.) Orca, Alaska. (Evans.)
44. G. concinnatum, (Lightf.) Corda.
Caeesia concinnata (Dicks.); Pearson's List, No. 133.
Labrador, collected by Waghorne. (Underwood.) On earth, Asulcan Glacier, Selkirk Mountains, B.C.; on rocks, mountains north of Griffin Lake, Gold Range, B.C.; on rocks, Mount Mark, near Qualicum, Vancouver Island. (Macoun.) Alaska, near Chilcat. (Krause.) Scoresby Sound, East Greenland. (C.Jansen.)
45. G. corallioides, Nees.
Caesia corallioides, (Nees) S. F. Gray; Pearson's List, No. 131
Alaska. (Krause) On rocks, Lake Lindeman, Yukon, and canon above the lake, 1898. (Williams.) Scoresby Sound, East Green-land. (C. Jansen.)
46. G. crenulatum, Gottsche.
Alaska. Collected by Krause. (Stephani.)
47. G. revolutum, (Nees) Schiffon. Greenland. (Berggren.)