66 



D. Costate. 

 E. Entire. 



F. Acuminate. 



D. Costate. 

 E. Serrate. 



F. Acuminate. 



Phascum cuspidalum. 



** Long exseried. 



Bariramia pomiformis. 



BB. Calyptra conical. 



C. Capsule square or angled. 



D. Costate. 



E. Serrate. 



F. Acuminate. 



D. Costate. 

 E. Serrate. 



F. Acuminate. 



Polylrichum commune. 



CC. Capsule cylindric. 



Pogonatum brevicaule. 

 Catherina angustata. 

 undulaia. 



V. Stones 

 B. Calyptra cucullate 



D. Costate. 

 E.. Entire. 



F. Acuminate. 



C. Capsule cylindric, erect; or unsymmetric 



INCLINED. 



Weisia viridula. 

 Tortella tortuosa. 



FF. Obtuse or acute. 



EE. Serrate. 



F. Acuminate. 



Torlula muralis. 

 Barhula. 



Rhacomitrium aciculare. 

 Orthotrichum anomaliim,. 



Dicranum. 



Leptobryum pyriforme. 

 Bryum caespiticium. 



argentum.. 

 Mnium. 

 Fissidens incurvus. 



