Var. minor, Tuckerm. Labrador or Newfoundland. (Waghorne fide Eckfeldt.)

219. L. pallescens, (Linn.) Sciler.

On dead wood, bark of trees and moss; common.

Labrador or Newfoundland. (Waghorne fide Eckfeldt.) Greenland. (Arct. Man.) Arctic America. (Richardson) On moss, summit of Mount Albert, Gaspé Co., Que.; on trees at Ottawa, 'Ont.; at Belleville, Hastings Co., Ont.; on trunks, rare, Algonquin Park, Ont. June, 1900; on earth and moss, Jumping Pound Creek and Bragg's Creek, foothills of Rocky Mountains; on moss and bark at Deer Park, Lower Arrow Lake, Columbia River, B.C.; on moss, mountains south of Spence's Bridge, B.C.; on alder bark and rocks, Hastings, B.C.; on rocks, Parson's Mountain, Victoria, and Mount Benson, Nanaimo, and on bark at Comox, Vancouver Island. (Macoun.) On bark of beech trees at Edmonton, Ont. (James White.) On trees, Thurlow Island, Gulf of Georgia, B.C. (Br. G. M. Dawson.) Chugachick, Cook's Inlet, Alaska. (Rothrock.) Sheep Creek, near Juneau, Alaska.

(Miss G. Cooley.)

Var. Upsalensis, (Linn.)

Greenland. (Arct. Man.) On earth at Wood Mountain, Assa.; on earth and moss at Bragg's Creek and Jumping Pound Creek, Rocky Mountains; on earth on rocks, Parson's Mountain and Pier's farm, Victoria, Vancouver Island. (Macoun.) Kotzebue Sound, Alaska. (Turner.)

Var. rosella, Tuck.

Labrador or Newfoundland. (Waghorne fide Eckfeldt.) On bark of trees, Thurlow Island, Gulf of Georgia, B.C., July 25th, 1885. (Dr. G. M. Dawson) On Douglas fir at Comox, Vancou-cer Island, April 30th, 1887. (Macoun.) Sheep Creek, Juneau, Alaska. (Miss G. Cooley.)

220. L. tartarea, (Linn) Ach.

Upon rocks, earth and mosses.

West Greenland. (Warming.) On rocks, Baffin Land, Hudson Strait, Aug., 1897. (Dr. R. Bell.) Various forms on Labrador or Newfoundland. (Waghorne fide Eckfeldt.) On earth, Barren Grounds, Lat.61 , Long. 104o, W. (J. W. Tyrrell.) Rigaud Mountain, Vaudreuil Co., Que. (Rev. G. Ducharme.) On earth, Salt

Lake, Anticosti, Que.; on rocks, Sea's farm, Victoria, Vancouver Island. (Macoun) St. George and St. Paul islands, Behring Sea. (J. M. Macoun) Shumigan Group, Unalaska and Cape Lis-burne, Alaska. (Rothrock.)

The form named L. leprosa by Nylander was found on earth on Sable Island, N.S., July, 1899. (Macoun.)

Var. frigida, (Sw.)

Greenland. (Arct. Man.) On rocks, St. Paul Island, Behring Sea, June 19th, 1897. (J. M. Macoun.) Kotzebue Sound, Alaska. (Turner.)

221. L. oculata, (Dicks.) Ach.

Incrusting mosses and other substances in alpine districts.

Greenland. (Vahl) On rocks in the Barren Grounds, Lat. 61°, Long. 104o W., July, 1893. (J. B. Tyrrell.) Islands of Behring Strait. (Wright.) On rocks, St. Paul Island, Behring Sea, June 19th, 1897. (J. M. Macoun.)

222. L melanaspis, (Vahl.) Ach. On rocks, Greenland. (Vahl.)

223. L. verrucosa, (Ach.) Laur.

Upon mosses and earth in alpine districts.

Greenland. (Vahl.) On dead stems of Selaginella rupestris, along Jumping Pound Creek, Rocky Mountains, June 15th, 1897. (Macoun) Eschscholtz Bay, Arctic Ocean, Alaska. (Rothrock)

224. L. cenisia, Ach.

On rocks, Labrador or Newfoundland. (Waghorne fide Eck-feldt) On limestone rocks, Hogsback, Rideau River, near Ottawa, Ont., May 2nd, 1897. (Macoun.)

225. L. cinerea, (Linn.) Sommerf.

On rocks, Arctic America. (Richardson.) Greenland. (Arct. Man.) Labrador or Newfoundland. (Waghorne fide Eckfeldt.) Canada. (A. T. Drummond.) On limestone rocks along the Rideau River, south of Ottawa, Ont., May 2nd, 1897; on rocks, Lake Nipigon, Ont., 1884. (Macoun.) Port Clarence, Icy Cape, and Cape Lisburne, Alaska. (Rothrock)

Var. laevata, Fr

On rocks, Labrador or Newfoundland. (Waghorne fide Eck-feldt)

226. L. gibbosa, Nyl.

Chimney Cove, Labrador. (Waghorne.) On rails, Canada. (A. T. Drummond.) On old cedar rails, Mr. James Terrill's farm, near Wooler, Northumberland Co., Ont., Oct. 16th, 1898; on flat limestone rocks, Blueberry Point, Aylmer, Que., April 25th, 1900. (Macoun.) Alaska. (Rothrock.)

227. L. calcarea, (Linn.) Sommerf,

Labrador or Newfoundland. (Waghorne fide Eckfeldt.) Greenland. (Arct. Man.) On limestone rocks, Rideau River, Ottawa, Ont., May 2nd, 1897; on rocks, Deer Park, Columbia River, B.C., June 7th, 1890. (Macoun.)

Var. contorta, Fr.

On calcareous rocks, Greenland. (Vahl.)

228. L. cinereo-rufescens, Nyl.

On rocks, Chimney Cove, also the form Lecanora sanguinea Kplh, on stones at Birchy Cove, Newfoundland. (Waghorne.)

229. L. csesio-cinerea, (Nyl.) Eckfeldt.

On rocks, Chimney Cove, Newfoundland. (Waghorne.)

230. L. lacustris, (With.) Nyl.

On rocks often inundated.

Greenland. (Vahl.) On rocks, Grand Lake, Newfoundland. (Waghorne.)

231. L. epulotica, (Ach.) Leight.

On rocks, Newfoundland. (Waghorne.)

Var. subepulotica, Nyl. On granitic rocks, Canada. (A. T. Drummond.)

232. L. molybdina, (Wahl.) Ach. var. vulgaris, Schaer.

On maritime rocks, Greenland. (Vahl.) Elsewhere in Arctic America. (Dr. Kane.) On rocks at Tadousac, Que. (A. T. Drummond.)

Var. ereutica, Wahl.

On rocks at Tadousac, St. Lawrence River, Que. (A. T. Drummond.)

233. L. chlorophana, (Wahl.) Ach.

Alpine rocks, and at lower elevations.

Greenland. (Vahl.) On boulders in southern Assiniboia, not uncommon, June, 1895. (Macoun.)

234. L. xanthophana, (Nyl.)

On rocks at Riviere du Loup, Que. (C. G. Pringle.)

235. L. Schleicheri, (Ach.) Nyl.

Not uncommon on earth at the forks of Old Wives' Creek, Assa., June 2nd, 1895. (Macoun.)

236. L. laxa, Branth. (MS.)

On limestone rocks along the Rideau River near Hogsback, near Ottawa, Ont., April 30th, 1897. (Macoun.)

237. L. cervina, (Pers.) Nyl.

On rocks near the Milk River, southern Assiniboia, June, 1895. (Macoun.) Eschscholtz Bay, Alaska. (Rothrock.)

238. L. glaucocarpa, (Wahl.) Ach.

On calcareous rocks.

Arctic America. (Richardson.) On rocks, Meadows, Goose Arm, Newfoundland. Waghorne.)

239. L. fuscata, (Schrad.) Th. Fr.

On granitic rocks. Arctic America. (Richardson.) Labrador or Newfoundland. (Waghorne fide Eckfeldt.) On limestone

8 1/2 rocks, Rideau River, south of Ottawa, Ont., May 2nd, 1897. (Macoun)

Var. rufescens, Th. Fr.

On granitic rocks. Arctic America. (Richardson.) Labrador or Newfoundland. (Waghorne fide Eckfeldt)

240. L. privigna, (Ach.) Nyl.

Labrador or Newfoundland. (Waghorne fide Eckfeldt.) On granitic rocks, Tadousac, Que. (A. T. Drummond.) On rocks, Ste. Anne des Monts River, Gaspé Co., Que. (Macoun.)

Var. pruinosa, Auctt.

On limestone rocks along the St. Lawrence, at Quebec. (A. T. Drummond.) On limestone rocks along Jupiter River, Anticosti, Que.; on limestone rocks around Ottawa, Ont., common. (Macoun.)

241. L. platycarpoides, (Anzi.)

On sandstone rocks along Jumping Pound Creek, Rocky Mountains, Alta., June 15th, 1897. (Macoun.)

242. L. flavada, Hepp.

On stones, Coal River, Newfoundland. (Waghorne.)

243. L. effusa, Pers.

On wood, River Head, Chimney Cove, Mclver's Cove, and Benoit's Cove, Newfoundland. (Waghorne.)

244. L. pinniperda, (Koerb.)

On an old plank at Crabbs, Newfoundland. (Waghorne.)

245. L. detractula, (Nyl.)

On stones in Lark Harbour, Newfoundland. (Waghorne.)