| Orthotrichum hallii Sull. & Lesq. | T. Drummond s.n. | s.d. | Canada | Ontario | Upper Canada | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | T. Drummond s.n. | s.d. | Canada | — |  | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | — | — | United States of America | Tennessee | Davidson Co. Nashville | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | W. Johnson J-11 | 20 May 1951 | United States of America | Colorado | Saguache Co. Crestone Creek Canyon | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | E. Lawton 2881 | 05 Jul 1955 | United States of America | Nevada | White Pine Co. Snake Mountains,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | L. N. Goodding 125 | 25 Jun 1901 | United States of America | Wyoming | Natrona Co. Chimneys of Pedro… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | L. N. Goodding 125 | 27 Jun 1901 | United States of America | Wyoming | Carbon Co. Platte Cañon | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | P. C. Standley 10711 | 21 Aug 1914 | United States of America | New Mexico | Rio Arriba Co. Brazos Canyon | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | J. Flock see Collection notes | 17 May 1988 | United States of America | Colorado | Boulder Co. University of Colorado… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | D. H. Norris 47942 | 28 Nov 1976 | United States of America | California | Glenn Co. 2 miles east… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | D. H. Vitt 36150 | 10 Aug 1991 | United States of America | New Mexico | San Miguel Co. Santa Fe… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | D. H. Vitt 35367 | 05 Jun 1990 | United States of America | Wyoming | Carbon Co. 14.8 km east… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | I. M. Haring 3616 | 03 Oct 1944 | United States of America | Arizona | Grand Canyon National Park, Coronado… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | J. M. Holzinger | 04 Jun 1896, 05 Jun 1896 | United States of America | Colorado | El Paso Co. Below the… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | L. N. Goodding s.n. | 27 Jun 1901 | United States of America | Wyoming | Natrona Co. Platte Cañon | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | A. J. Grout | July 1914 | United States of America | Colorado | Ledge of road to Rollinsville… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | E. Hall | May 1872 | United States of America | Colorado | Rocky Mts. | type fragment |  |  |   |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 5507 | 16 May 1958 | United States of America | Utah | Millard Co. Canyon Mts., Oak… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 9789 | 22 Aug 1964 | United States of America | Colorado | Douglas Co. Rampart Range, Devils… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 9797 | 22 Aug 1964 | United States of America | Colorado | Douglas Co. Rampart Range, Devils… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 5511 | 16 May 1958 | United States of America | Utah | Millard Co. Canyon Mts., Oak… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 9311 | 23 May 1964 | United States of America | Utah | Washington Co. Pine Valley Mts.,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 9791 | 22 Aug 1964 | United States of America | Colorado | Douglas Co. Rampart Range, Devils… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 8283 | 18 Sep 1954 | United States of America | Utah | Garfield Co. Henry Mts., Mt.… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 2276 | 10 Aug 1939 | United States of America | Utah | Daggett Co. Carter Creek | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 3443 | 20 Jun 1952 | United States of America | Utah | Grand Co. La Sal Mts.,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 2698 | 23 Jun 1948 | United States of America | Utah | Grand Co. La Sal Mts.,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 3865 | 17 May 1956 | United States of America | Utah | Sevier Co. Siguro Canyon, ca.… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 2318 | 10 Aug 1939 | United States of America | Utah | Daggett Co. Carter Creek | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 2277 | 10 Aug 1939 | United States of America | Utah | Daggett Co. Carter Creek | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 2271 | 10 Aug 1939 | United States of America | Utah | Daggett Co. Carter Creek | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 5504 | 16 May 1958 | United States of America | Utah | Millard Co. Canyon Mts., Oak… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 5779 | 11 Jun 1959 | United States of America | Utah | Daggett Co. Uintah Mts., Green… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 3637 | 11 Aug 1954 | United States of America | Utah | San Juan Co. Elk Ridge,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | J. M. Holzinger | 04 Jun 1896 | United States of America | Colorado | El Paso Co. Along the… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | J. Röll s.n. | s.d. | United States of America | — | Rocky Mountains | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | H. S. Jewett s.n. | 28 Jul 1910 | United States of America | Colorado | North Cheyenne Canyon, on road… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | J. M. Holzinger | 04 Jun 1896 | United States of America | Colorado | El Paso Co. Along the… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | C. G. Pringle 19 | 30 Mar 1881 | United States of America | Colorado | Trinidad. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | C. F. Baker | 1896 | United States of America | Colorado | Log Canon and Lewstone Canon… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | H. S. Jewett s.n. | 28 Jul 1910 | United States of America | Colorado | North Cheyenne Canyon, on road… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 5505 | 16 May 1958 | United States of America | Utah | Millard Co. Canyon Mts., Oak… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | H. S. Jewett s.n. | 28 Jul 1910 | United States of America | Colorado | North Cheyenne Canyon, on road… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | H. S. Jewett s.n. | 28 Jul 1910 | United States of America | Colorado | North Cheyenne Canyon, on road… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 3639 | 11 Aug 1954 | United States of America | Utah | San Juan Co. Elk Ridge,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 8288 | 17 Sep 1954 | United States of America | Utah | Garfield Co. Henry Mts., Sawmill… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 8600 | 28 Jul 1959 | United States of America | Utah | Daggett Co. Uintah Mts., Green… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 2274 | 10 Aug 1939 | United States of America | Utah | Daggett Co. Carter Creek | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 8282 | 17 Sep 1954 | United States of America | Utah | Garfield Co. Henry Mts., Sawmill… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 8600 | 28 Jul 1959 | United States of America | Utah | Daggett Co. Green River, Red… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 4807 | 25 Jul 1957 | United States of America | Utah | Grand Co. La Sal Mts.,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 5756 | 16 May 1959 | United States of America | Utah | Millard Co. Pavant Mts., Maple… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 4807 | 25 Jul 1957 | United States of America | Utah | Grand Co. La Sal Mts.,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 5505 | 16 May 1958 | United States of America | Utah | Millard Co. Canyon Mts., Oak… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | W. R. Buck 39813 | 11 Aug 2001 | United States of America | New Mexico | San Miguel Co. Santa Fe… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | D. H. Norris 71713 | 30 Sep 1984 | United States of America | Utah | Garfield Co. Bryce Canyon National… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | W. R. Buck 55051 | 30 Jul 2009 | United States of America | Utah | Uintah Co. Ashley Natinonal Forest,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | J. M. Holzinger | 04 Jun 1896 and 05 Jun 1896 | United States of America | Colorado | El Paso Co. Collected along… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | R. D. Worthington 35330 | 22 Jul 2008 | United States of America | New Mexico | Lincoln Co. White (Sacramento) Mts.,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | W. A. Weber B112051 | 13 Oct 2002 | United States of America | Colorado | Boulder Co. Boulder Mountain Parks,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | W. A. Weber 9656 | 20 Jun 1956 | United States of America | Colorado | Boulder Co. North slope, "narrows"… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | W. B. Kiener 4233 | 07 Oct 1936 | United States of America | Colorado | South St. Vrain Canon, Rocky… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | J. R. Shevock 32472 | 28 Oct 2008 | United States of America | Nevada | Mineral Co. Anchorite Hills. In… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | E. Whitehouse 25231 | 14 Jul 1951 | United States of America | South Dakota | Pennington Co. Black Hills, about… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | E. Whitehouse 25231 | 14 Jul 1951 | United States of America | South Dakota | Pennington Co. Black Hills, south… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | E. Whitehouse 25231 | 14 Jul 1951 | United States of America | South Dakota | Pennington Co. Black Hills, south… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | S. Flowers 2594 | 27 May 1944 | United States of America | Utah | Wayne Co. Fish Creek | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | E. O. Wooton 1514 | 01 Jul 1895 | United States of America | New Mexico | Lincoln Co. Ruidoso Creek | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | W. D. Reese 18146 | 07 Jun 1993 | United States of America | Wyoming | Albany Co. Along Roger Canyon… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | F. J. Hermann 23438 | 27 Sep 1970 | United States of America | Colorado | Larimer Co. Pengree Park Rd.… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | F. J. Hermann 19855 | 02 May 1965 | United States of America | Arizona | Coconino Co. Snow Bowl Rd.,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | F. J. Hermann 27675 | 08 Nov 1976 | United States of America | Colorado | Larimer Co. In gully leading… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | A. A. Heller 3566 | 21 May 1897 | United States of America | New Mexico | In a canon one mile… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | C. G. Pringle 19 | 30 Mar 1881 | United States of America | Colorado | Trinidad. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Orthotrichum hallii Sull. & Lesq. | E. O. Wooton 1514A | 01 Jul 1895 | United States of America | New Mexico | Lincoln Co. Ruidoso Creek | — |  |  |  |  |