FLORA OF THE MIAMI VALLEY. 53 



TRICHOSTOMUM, Br. & Sch. 

 T. pallidum, Hedw. 



BARBULA, Hedw. 

 B. unguiculata, Hedw. B. caespitosa, Schwa^gr. 



DIDYiMODON, Br. & Sch. 

 D. rubellus, Br. & Sch. 



POTTIA, Ehrh. 

 P. truncata, Br. & Sch. 



TETR APHIS, Hedw. 

 T. pellucida, Hedw. 



DRUMMONDIA, Hook. 

 I), clavellata, Hook. 



ORTHOTRICHUiM, Hedw. 

 O. strangulatum, Beauv. 



(iRINBHA, Ehrh. 

 G. Pennsylvanica, S(hwa3gr. 



HEDWIGIA, Ehrh. 

 H. ciliata, Ehrh. 



ATRICHUiM, Beauv. 

 A. angustatum, Beauv. 



I'oLVTKIcnUM, Brid. 

 J', formosum, i ledw. 



TIM MI A, 1 1 LOW. 

 T. megapolitana. Hedw. 



