wAcouN.] CATALOGXJE OF CANADIAN PLANTS. 43 



(155.) P. intermedia, Fuern. ; Braithw. British Moss-Flora, 197. 



P. truncata, Canadian Musci, No. 62, in part. 



On earth on the Portage between Lesser Slave Lake and Peace 

 Eiver, September 23rd, 1872. (Maeoun.) 



(156.) P. littoraiis, Mitt. ; Braithw. British Moss-Flora, 198. 

 P. truncata, Canadian Musci, No. 62, in part. 

 On earth at Yale, B.C., May 17th, 1875. (Maeoun.) 



(157.) P. Heimii, Fuern. ; Lesq. & James, Mosses of N. Ame- 

 rica, 102. 



Gymnostomum Heimii, var. I., var. II., var. III., Drumm. Muse. Bor.- 

 Am., Nos. 13, 14 and 15 respectively. 



Muddy swamps in the mountains ; rare (No. 13) ; muddy swamps 

 in the mountains (No. 14) ; bank of Hayes River below York Factory) 

 Hudson Bay (No. 15). (Drummond.) Greenland. (Fl. Gr.) 



(158.) P. latifolia, Muell. ; Lesq. & James, Mosses of N. Ame- 

 rica, 103. 



Greenland. (Fl. Gr.) On rocks, Mount Alymer, Eocky Mountains, 

 alt. 8,000. {Maeoun.) 



Yar. pilifera, Muell. ; Lesq. & James, Mosses of N. Ariierica, 104. 



Weissia latifolia, Drumm. Muse. Bor.-Am-, No. 70. 



Summits of the mountains ; not uncommon. {Drummond.) On earth 

 near Cfiche Creek, B.C. (Maeoun.) 



(159.) P. heimioides, Kindb. (n. sp.) 



Nearly allied to P. Heimii but differs in the leaves being shorter, 

 the lower obtuse, the costa sometimes ei current, the capsule longer 

 and narrower, cylindric, the seta golden yellow, and the peristome 

 present but rudimentary. 



The allied Pottia riparia, Aust., is described by Lesq. & James as 

 having " a conical mamillate lid, the costa of the leaves vanishing 

 below the apex." These characters do not correspond with the 

 Canadian specimens (No. 719 from Cache Creek, B.C., May 25th, 1875, 

 and Canadian Musci from the Gasp6 coast), sent by Prof. Maeoun ; 

 they probably belong to another new species. 



On earth along Cave Avenue, a little above the Bow Eiver Bridge, 

 National Park, Banff, Eocky Mountains, July 4th, 1891. (Maeoun.) 



