39. Pleuroclada

137. P. albescens, (Hook.) Spruce.

Greenland. (Vahl.) Kobbefjord, near Goethaab, Greenland, 1884. (Warming & Holm.) On earth on the Gold Range, north of Griffin Lake, B.C., alt. 7,500 feet, Aug. 7th, 1889. (Macoun.) Scoresby Sound, East Greenland. (C.Jansen.)

138. p. Islandica, (Nees)

Northern Greenland, Lat. 640, May 24th, 1888. (Dr. Rosen-vinge.)

42. Anthelia, Dumort

144. A. julacea, (Linn.) Dumort.

Greenland. (vahl.) On wet rocks, Asulcan Glacier, Selkirk Mountains, B.C., Aug. 7th, 1890. (Macoun.) Virgin Bay, St. Matthew Island, St. Lawrence Island, Hall Island and Unalaska, Alaska. (Evans.) Scoresby Sound, East Greenland. (C.Jansen.)

145. A. juratzkana, (Limpr.) Trevis.

St. Matthew Island and Hall Island, Alaska. (Evans.) Hold-with-Hofe and Scoresby Sound, East Greenland. (C.Jansen.)

43. Herberta, S. P. Gray

146. H. adunca, (Dicks.) S. F. Gray.

St. Paul Island, Behring Sea, Alaska. (Dr. Merriam.) Yes Bay and Hall Island, Alaska. (Evans.)

45. Trichocolea, Dumort

150. T. tomentella, (Ehrh.) Dumort.

Miquelon Island, Gulf of St. Lawrence. (Delaware.) At Hamilton Farm, River Rouge, Argenteuil Co., Que. (D'Urban)) In moss in Dow's swamp, Ottawa, Ont.; at Meech's Lake, north of Chelsea, Que.; in tamarac and black ash swamps, Belleville, Hastings Co., Ont.; in boggy woods, Cache Lake, Algonquin Park, Ont., June 9th, 1900. (Macoun)

50. Lejeunea, Libert. 177. L. Cavifolia, (Ehrh.) Lindb

Miquelon Island, Gulf of St. Lawrence. (Delaware.) On cedar trees, Ste Anne des Monts River, Gaspé Co., Que.; on moss and rocks along the right bank of the Moira, below the paper-mill dam, Belleville, Hastings Co., Ont.; on rocks at Cache Lake, Algonquin Park, Ont., July I2th, 1900. (Macoun.)

178. L. patens, Lindb.

On damp rocks, Big Intervale, Margaree, Cape Breton Island, N.S., July 20th, 1898. (Macoun.)

51. Cololejeunea, Schiffn

179. C. Biddlecomiae, (Aust.) Evans.

On cedar trees in Dow's swamp, Ottawa, Ont., Sept. 21st, 1889; on cedar trees in woods east of Belleville, Hastings Co., Ont., Sept. 17th, 1870. (Macoun.)

180. C. Macounii, (Spruce.) Evans.

On the bark of Acer circinatum and other small trees at Hastings, Burrard Inlet, B.C., April 8th, 14th, and 20th, 1889. (Macoun)