CATALOGUE OF CANADIAN PLANTS. 221 



266. G. microtricha, C. M. & Kinds. 



On dry rocks at Revelstoke, B.C., May 7th, 1890. {Macoun.) 



270. G. ovata, Web. & Mohr. 



On rocks, Clearwater Lake, Labrador, July 21st, 1896. {A. P. 

 Low.) On rocks, Jumping Pound Creek, and on Moose Moun- 

 tain, Rocky Mountains, Alta, June, 1897. {Macoun.) Lake Lin- 

 deman and Dawson, and at various intermediate points on the 

 Yukon. {Williams.) 



272. G. calyptrata, Hook. 



Coscinodon calyptratus, Hook.; Kindb., Bryol. N.Am. & Eur. 

 241. 



lOOS. G. arctophyla. Kinds., Revue Bryol. 1896. 



Leaves ovate-oblong, involute above, suberect when moist, 

 appressed when dry, the uppermost not larger; basal cells gener- 

 ally short, the upper short and opaque; hair-point not long. 

 Capsule suboblong brownish; lid apiculate; annulus indistinct; 

 pedicel straight. Tufts cohering, generally blackish when dry. 

 About 3 cm. high. 



On rocks, Greenland. {Berggren.) On rocks, Paugan Falls, 

 Gatineau River, Que., Aug. 24th, 1894. {Macoun.) 



Subsp. labradorica, Kinds., Bryol. N. Am. & Eur. 221. 



Tufts about I cm. high, brown-green. Inner (lower) basal leaf- 

 cells long. Lid of capsule obliquely rostellate. 



On rocks, Clearwater Lake, Labrador, July 21st, 1896. {A. P. 

 Low.) 



273. G. commutata, Huesen. 



On rocks along the Gatineau River, Que., June 22nd, 1900. 

 {Macoun.) 



1009. G. teretinervis, Limpricht. 



On boulders usually covered with water in the Petewawa River, 

 Algonquin Park, Ont., July 7,4th, 1900. {Macoun.) 



1010. G. tenuicaulis, R. S. Williams, Bull. Torn Bot. Club, 

 XXVH ; 316-317, 1900. 



- On rather dry rock walls at Dawson, Yukon, 1899. {Williams.) 



