LIST OF CANADIAN HEPATIC^. 15 



67. Scapania brevicaulis, Tayl. 



Hab. North America. (Drummond in Hb. Hook.} 



68. Scapania glaucocephala, (Tayl.) 



Hab. On old logs, Belleville, (1867 (265). Peace River, 

 Rocky Mountains, 1872 (206 pp.). On rotten wood, west of the 

 Fraser, British Columbia, 1875 (190). On earth, along the Eraser 

 Eiver, June, 1875 (203). On rotten wood, Porcupine Mountain, Mani- 

 toba, 1881 (106). Manitoba Lake, Man., 1881 (105). On logs, 

 Belleville, 1882 (230). On dead wood, Gasps' Coast, August, 1882 

 (54). On old logs, Mount Albert, Gaspe, 4,000 ft, August, 1882 (34). 

 Ottawa, 1883 (248). On old elm logs, Ottawa, 1883 (229). Ottawa, 

 1884 (91). (Macoun.) 



Description of PI. VIII. Fig. 1. Plants nat. size. 2. Stem x 24. 

 Origin (Original spec. Herb. Taylor). 3-5. Leaves x 24 (106). 6. Upper 

 leaves x 24 (248). 7. Bract x 24 (248). 8. Perianth with bracts x 

 24 (190). 9. Perianth x 24 (106). 



69. Scapania convexa, (Scop.) 



Jungermania umbrosa, Schrad. 



Hab. On rotten wood, Mount Mark, Vancouver Island, 3,000 ft., 

 25th July, 1887, cT and ? cum per. (101). (Macoun.) Miquelon Island. 

 (Delamare.) 



Scapania subalpina, Ness. In a large tuft on rocks 20 miles north of 

 Michipicotin, 27th July, 1869 (34). (Macoun.) [Named thus by 

 Austin, but appears to be a form between S. nemorosa and S. undulata.~\ 



70. Diplophyllum albicans, (L.) Bum. 



Hab. On earth, Pictou, Nova Scotia, 1883 (97a). On rocks, Mount 

 Benson, Vancouver Island, 8th June, 1887 (91). On rocks, 

 Mount Arrowsmith, V.I, 17th July, 1887 (96). (Macoun.) 

 Rocky Mountains. (Bourgeau.) Fort Colville. (Lyall.) Miquelon 

 Island. (Delaware.) 



Obs. This species, about the commonest in Europe, appears to be 

 rare in America, as all the specimens that I have seen, except these 

 recorded refer to Diplophyllum taxifolium. It is at once recognized by 

 the presence in the two lobes of a pseudo-nerve, which is often color- 

 less, and consists of a series of from 4 to 6 elongated cells, a cross-sec- 

 tion of the leaf shows the cells to be of equal diameter us the otherSj 

 only with the outer walls thickened considerably. 



