( J 37) 



ameter. Annulus of two rows of cells. Teeth of peristome 

 hyaline bordered, papillose above, outer plates striate, inner 

 lamellae about 30, segments without rounded perforations, 

 more or less split along the keel with mostly 2 appendiculate 

 cilia between. Seta rough throughout, up to 1.2 cm. high. 

 Smooth spores up to .011 mm. (Plate 23.) 



Dawson, on rock. In good fruit June 24, 1S98 (722). 

 This species is evidently nearest suberythrorrhizon but dif- 

 fers in the rough pedicel, leaves narrower, less serrate and 

 plicate and cilia appendiculate. 



Brachythecium erythrorrhizon B. & S. Dawson, on 

 earth, common. Leaves always more or less falcate-secund, 

 thus resembling velutinum more perhaps than any other of 

 the genus (721). 



Cirriphyllum cirrosum (Schwaegr.) Grout. Skagway. In 

 thick mats on rock by stream. Collected in rather old fruit, 

 August 27. These specimens have stems up to 11 cm. long. 

 A few of the capsules still retain the lid which is acutely 

 conical, a little higher than its basal diameter. The seg- 

 ments are separated by 1-3 long, nodose cilia. Not before 

 reported with fruit in North America (794). 



Eurhynchium strigosum (Hoffm.) B. & S. Dawson, com- 

 mon (725). 



Eurhynchium stoloniferum (Hook.) Jaeger & Sauerb. 

 Canon City, Dyea Creek and Skagway (724). 



Porotrichum neckeroides (Schwaegr.) Williams. 



[Thamnium neckeroides B. & S.) 



Canon City, Dyea Creek. Lower stem leaves nearly as 

 broad as long, entire or nearly so, with rounded apex. Costa 

 rather coarsely toothed above on back in the upper leaves 

 (726). 



Plagiothecium piliferum (Sw.) B. & S. (Hyp nam trich- 

 ophorum Spruce.) Skagway, Canon City and Lake Linde- 

 man. In very soft, often thick cushions on rock (727). 



Plagiothecium pulchcllum (Dicks.) B. & S. Lake Marsh 

 and Dawson. Common on earth and rock (728). 



Plagiothecium dcnticulatum (L.) B. & S. Head of Lake 

 Bennett and Dawson (729). 



