| Lactarius piperatus (L.:Fr.) Pers. | E. S. Earle 29 | 29 Aug 1904 | United States of America | Mississippi | Harrison Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | M. Levine | 01 Aug 1916 | United States of America | New York | Cold Spring Harbor | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | — | 07 Aug 1914 | United States of America | New Jersey | Bergen Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | — | 07 Aug 1914 | United States of America | New Jersey | Bergen Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | — | 27 Jul 1916 | United States of America | New Jersey | South Fort Lee | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | — | 11 Aug 1916 | United States of America | New Jersey | Bergen Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | C. H. Peck 837 | 05 Aug 1902 | United States of America | New York | Suffolk Co. Long Island | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | — | 09 Aug 1916 | United States of America | New York | Bear Mountain | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | — | 15 Aug 1916 | United States of America | New York | Jerome Ave. V.P. Nursery | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | L. M. Underwood | July 1896 | United States of America | Alabama | Lee Co. Auburn | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | H. A. C. Jackson 37- D | 11 Aug 1935 | Canada | Quebec | Hachelaga County ? | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | W. R. Arde 222 | 15 Jul 1934 | United States of America | Pennsylvania | Philadelphia Co. Penn Valley, Philadelphia | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | D. R. Sumstine | 13 Sep 1940 | United States of America | Pennsylvania | Westmoreland Co. Near Saltsburg Kiski… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | Collector unspecified s.n. | July 31 | United States of America | North Carolina | Pink Beds, Pigeon Gap trail,… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | G. W. Wilson A. | 03 Aug 1907 | United States of America | Indiana | Putnam Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | G. S. Burlingham | 31 Aug 1907 | United States of America | North Carolina | Pink beds | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | D. R. Sumstine | 12 Jul 1939 | United States of America | Pennsylvania | Westmoreland Co. Kiski Campus | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | D. R. Sumstine | July 1911 | United States of America | New York | Chautauqua Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | Collector unspecified 3059 | 31 Aug 1919 | United States of America | New York | Cold Spring Harbor, Long Island | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | D. R. Sumstine | Jul 1919 | United States of America | Pennsylvania | Fayette Co. Killarney Park | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | D. R. Sumstine | Jul 1919 | United States of America | Pennsylvania | Fayette Co. Killarney Park | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | C. C. Hanmer | 03 Aug 1902 | United States of America | Connecticut | Near East Hartford | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | G. H. Sumstine | 03 Sep 1938 | United States of America | West Virginia | Tucker Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | D. R. Sumstine s.n. | 04 Aug 1941 | United States of America | Pennsylvania | Centre Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lactarius piperatus (L.:Fr.) Pers. | D. R. Sumstine | 18 Aug 1938 | United States of America | Pennsylvania | Monroe Co. Pleasant Gap | — |  |  |  |  |