LIST OF CANADIAN HEPATICvE. 7 



Torrey.} Vancouver Island, 23rd December, 1872 (43). On trees, 

 Y. I., 6th May, 1875 (15). (Macoun). On trees, Y. I., 1885 (141). 

 (Dawson.} On trees, Y. I., c? and 9 with perianth, 9th May, 1887 

 (21). On trees, Comox, Y. I., 27th April, 1887 (54). (Macoun.} Yan- 

 couver Island and near Fort Colville. (Lyall.} Alaska. (Krause.} 



20. Porella platyphylloidea, (Sohweinte.) 



Hab. On trees, Vancouver Island, 9th May, 1887 (19). (Macoun.") 

 These specimens agree in every particular with original ones from 

 Schweintz. Fort Colville. (Lyall.} 



21. Porella laevigata, (Nees.) 



Hab. Kettle Falls, Columbia River. (Lyall. in Herb. Mitt.} On 

 rocks, Fraser Canyon, above Yale, B.C., 1875 (Macoun.} 



22. Porella platyphylla, (L.) 



Hab. Unalaschka, Chamisso in Hb. Acad. Petropolit. Hb. Mont., 

 n. 206, var. /?., major convexula. (Syn. Hep. 279.) Alaska. (Krause.} 



23. Porella rivularis, (Nees.) 



Hab. On trees, along the Fraser River, 1872. (Macoun, Hb. Aust.) 



24. Porella Bolanderi (Aust.) Bull. Torrey Bot. Club, 3, p. 84. 



Hab. On rocks, Nanaimo River, Vancouver Island, 26th April, 

 1887 (59). On rocks, Cedar Hill, V.I., 9th May, 1887 (18). (Macoun.} 



25. Porella Bolanderi, (Aust.) var. 



Mount Benson alt. 3,000 ft., Vancouver Island, 8th June, 1887 (77). 

 (Macoun.} 



26. Ptilidium Californicum, (Aust.) Pearson. (Mastigophora 



Californica Aust.) (Lepidozia Californica Aust.) Bull. Torrey 

 Bot. Club, 6, 19, 302, 1875. 



Hab. On old logs, Comox, Vancouver Island, 29th April, 1887 (73). 

 (Macoun.} Vancouver Island, 1875. (Macoun, Herb. Austin.} 



Obs. Having met with perianths of this beautiful species I have no 

 hesitation in referring it to Ptilidium. 



