| Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | C. A. Moore 123 | 09 Apr 1957 | United States of America | Indiana | Monroe Co. Cedar Bluffs, about… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | L. Lee | 15 Nov 1942-25 Dec 1942 | Greenland | — | Vestgronland. SW-coast between Godthab &… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | L. Lee | 15 Nov 1942-25 Dec 1942 | Greenland | — | Vestgronland. SW-coast between Godthab &… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | L. Lee 27 | 15 Nov, Dec, 1942 | Greenland | — | SW-Greenland | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | R. S. Nanz | Aug 1919 | United States of America | New York | Tompkins Co. Taughannock Falls | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | N. E. K. Hartz | Jun 1892 | Greenland | — | Ostgronland. Gåsefjord | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | L. E. Grout | Apr 1900 | United States of America | Vermont | Chittenden Co. Lake Champlain | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | L. E. Grout | Apr 1900 | United States of America | Vermont | Chittenden Co. Lake Champlain | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | L. E. Grout | Apr 1900 | United States of America | Vermont | Chittenden Co. Lake Champlain | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | J. H. Turner | 1891 | United States of America | Alaska | Porcupine River | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | D. C. Eaton | 1892 | United States of America | Connecticut | West Peak, Meriden | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | J. M. Holzinger 50 | May 1894 | United States of America | Minnesota | Winowa bluffs | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | P. C. Standley 3995 | 16 Jul 1908 | United States of America | New Mexico | Winsors Ranch, Pecos Nat. For. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | P. C. Standley 3995 | 16 Jul 1908 | United States of America | New Mexico | Winsors Ranch, Pecos Nat. For. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | P. C. Standley 3995 | 16 Jul 1908 | United States of America | New Mexico | Winsors Ranch, Pecos Nat. For. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | J. K. Small | 10 May 1892 | United States of America | West Virginia | Greenbrier Co. Kates Mt. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | J. A. Wheldon | June 1913 | United States of America | Pennsylvania | Silverdale, West Lancushire? | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | T. C. Porter | 13 Feb 1969 | United States of America | Pennsylvania | Spruce Hill | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | J. K. Small | — | United States of America | West Virginia | Greenbrier Co. Kates Mt. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | J. K. Small | 10 May 1892 | United States of America | West Virginia | Greenbrier Co. Kates Mt. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | — | — | United States of America | New Hampshire | See location note | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | G. E. Nichols | 25 Apr 1906 | United States of America | Connecticut | West Peak, Meridian | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | 93 | — | United States of America | Massachusetts | Horack? Mo. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | — | — | Canada | Ontario | Lake Superior; in fructification at… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Rhytidium rugosum (Ehrh. ex Hedw.) Kindb. | T. Drummond | — | Canada | Ontario | Lake Superior; in fructification at… | — |  |  |  |  |