| Suillus elegans (Schumach.) Snell | G. D. Darker 6165 | 02 Oct 1936 | United States of America | Massachusetts | Suffolk Co. Arnold Arboretum, Jamaica… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina populi-salicis Mix | G. D. Darker T770 | 22 Aug 1929 | United States of America | California | Richardson Grove | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker T774 | 12 Aug 1929 | United States of America | Oregon | Lake mountain Trail, Oregon Caves | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker T769 | 23 Jul 1929 | United States of America | Oregon | Government Camp | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker T775 | 07 Aug 1929 | United States of America | Oregon | Prospect, Rogue River | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker T772 | 14 Aug 1929 | United States of America | Oregon | Sucker Creek, below junction with… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Tetraphis pellucida Hedw. | G. D. Darker | 31 May 1936 | United States of America | Massachusetts | Purgatory Swamp | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peniophora rufa (Fr.) Boidin | G. D. Darker 72890 | 08 Oct 1960 | Canada | Ontario | Madawaska R., 2 miles North… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Suillus grevillei (Klotzsch:Fr.) Singer | G. D. Darker 6165 | 02 Oct 1936 | United States of America | Massachusetts | Suffolk Co. Jamaica Plain, Arnold… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina faulliana Mix | G. D. Darker T776 | 09 Jul 1929 | United States of America | Oregon | Zig Zag Mountain Trail | — |  |  |  |  | 
                       
                        
                            
                            
                                | Lycoperdon peckii Morgan | G. D. Darker | — | United States of America | Massachusetts | Norfolk Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Dasyscyphus | G. D. Darker s.n. | 02 May 1936 | Canada | Ontario | Richmond Hill. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Dasyscyphus | G. D. Darker s.n. | 01 May 1936 | Canada | Ontario | S. of Aurora. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Taphrina faulliana Mix | G. D. Darker A. J. Mix Taphrina T-776 - Darker 2689 | 09 Jul 1929 | United States of America | Oregon | ZigZag Mountain Trail | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina letifera (Peck) Sacc. | G. D. Darker A. J. Mix Taphrina T-697 | 12 Jun 1936 | United States of America | Massachusetts | Mt. Wachusett | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker A. J. Mix Taphrina T-772 - G. D. Darker #3080 | 14 Aug 1929 | United States of America | Oregon | Sucker Creek below junction with… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker A. J. Mix Taphrina T-769 - G. D. Darker #2862 | 23 Jul 1929 | United States of America | Oregon | Government Camp | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker A. J. Mix Taphrina T-774 - G. D. Darker #3037 | 12 Aug 1929 | United States of America | Oregon | Lake Mountain Trail, Oregon Caves | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker A. J. Mix Taphrina T-775 - G. D. Darker #2961 | 07 Aug 1929 | United States of America | Oregon | Rogue River, Prospect | — |  |  |  |  | 
                       
                        
                            
                            
                                | Taphrina populi-salicis Mix | G. D. Darker A. J. Mix Taphrina T-770 - G. D. Darker #3152 | 22 Aug 1929 | United States of America | California | Richardson Grove | — |  |  |  |  | 
                       
                        
                            
                            
                                | Protomyces erythronii Peck | G. D. Darker 5314 | 22 May 1935 | United States of America | Massachusetts | Medford Co. Middlesex Fells | — |  |  |   |  | 
                       
                        
                            
                            
                                | Protomyces erythronii Peck | G. D. Darker 5314 | 22 May 1935 | United States of America | Massachusetts | Medford Co. Middlesex Fells | — |  |  |   |  | 
                       
                        
                            
                            
                                | Taphrina occidentalis W.W.Ray | G. D. Darker s.n. | 07 Aug 1929 | United States of America | Oregon | Rogue River, Prospect | — |  |  |   |  | 
                       
                        
                            
                            
                                | Pleurostoma candollei Tul. & C.Tul. | G. D. Darker 6160 | 20 Apr 1936 | United States of America | Massachusetts | Middlesex Co. Medford | — |  |  |   |  | 
                       
                        
                            
                            
                                | Pleurostoma candollei Tul. & C.Tul. | G. D. Darker 6160 | 20 Apr 1936 | United States of America | Massachusetts | Middlesex Co. Medford | — |  |  |   |  | 
                       
                        
                            
                            
                                | Claviceps purpurea (Fr.) Tul. | G. D. Darker 1219 | 05 Sep 1923 | Canada | Ontario | Bear Island, Lake Timagami, Nipissing… | — |  |  |   |  | 
                       
                        
                            
                            
                                | Cordyceps superficialis (Peck) Sacc. | G. D. Darker 5355 | 30 Jun 1935 | United States of America | Massachusetts | Norfolk Co. Norwood. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Cordyceps superficialis (Peck) Sacc. | G. D. Darker 5355 | 30 Jun 1935 | United States of America | Massachusetts | Norfolk Co. Norwood. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Cordyceps superficialis (Peck) Sacc. | G. D. Darker 4860 | 27 Aug 1933 | United States of America | Massachusetts | Norfolk Co. Norwood. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Bifusella faullii Darker | G. D. Darker 5105 | 23 Aug 1934 | United States of America | New York | near Blue Mt. Lake, Adirondack… | — |  |  |   |  | 
                       
                        
                            
                            
                                | Keithia tsugae (Farl.) E.J.Durand | G. D. Darker 5043 | 28 Jan 1934 | United States of America | Massachusetts | Suffolk Co. Arnold Arboretum | — |  |  |   |  | 
                       
                        
                            
                            
                                | Keithia tsugae (Farl.) E.J.Durand | G. D. Darker 4972 | 30 Nov 1933 | United States of America | Massachusetts | Middlesex Co. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Keithia tsugae (Farl.) E.J.Durand | G. D. Darker 5043 | 28 Jan 1934 | United States of America | Massachusetts | Suffolk Co. Arnold Arboretum | — |  |  |   |  | 
                       
                        
                            
                            
                                | Pezicula corni Petr. | G. D. Darker 5484 | 27 Oct 1935 | United States of America | Massachusetts | Middlesex Co. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Rhabdocline pseudotsugae Syd. | G. D. Darker 4725 | 21 May 1933 | United States of America | Massachusetts | Essex Co. Matthew's Estate | — |  |  |   |  | 
                       
                        
                            
                            
                                | Rhabdocline pseudotsugae Syd. | G. D. Darker 4725 | 21 May 1933 | United States of America | Massachusetts | Essex Co. Matthew's Estate | — |  |  |   |  | 
                       
                        
                            
                            
                                | Rhabdocline pseudotsugae Syd. | G. D. Darker 4741 | 11 Jun 1933 | United States of America | Massachusetts | Essex Co. Matthew's Estate | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia fragilis Tracy & Galloway var. fragilis | G. D. Darker 5926ex FH | 02 Aug 1936 | United States of America | Utah | Salt Lake Co. near pass… | — |  |  |   |  | 
                       
                        
                            
                            
                                | Ascocalyx abietis Naumov | G. D. Darker 5583 | 08 May 1936 | United States of America | New York | Essex Co. Cascade Lake | — |  |  |   |  | 
                       
                        
                            
                            
                                | Atropellis pinicola Zeller & Goodd. | G. D. Darker 7573 | 15 Jul 1929 | United States of America | Oregon | near Yokum Falls | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia heucherae (Schwein.) Dietel | G. D. Darker 5753 | 29 Jul 1936 | United States of America | Utah | Salt Lake Co. Lake Mary… | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia heucherae (Schwein.) Dietel | G. D. Darker 5886 | 01 Aug 1936 | United States of America | Utah | Salt Lake Co. Silver Lake | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia orbicula Peck & Clinton | G. D. Darker 4765 | 04 Jul 1933 | United States of America | Massachusetts | Spring Pond, near Lynn | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia pimpinellae (F.Strauss) Röhl. | G. D. Darker 5742 | 28 Jul 1936 | United States of America | Utah | Salt Lake Co. City Creek | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia pimpinellae (F.Strauss) Röhl. | G. D. Darker 5742 | 28 Jul 1936 | United States of America | Utah | Salt Lake Co. City Creek | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia recondita Roberge ex Desm. | G. D. Darker 5351 | 30 Jun 1935 | United States of America | Massachusetts | Norwood | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia recondita Roberge ex Desm. | G. D. Darker 5351 | 30 Jun 1935 | United States of America | Massachusetts | Norwood | — |  |  |   |  | 
                       
                        
                            
                            
                                | Puccinia saxifragae Schltdl. | G. D. Darker 5879 | 30 Jul 1936 | United States of America | Utah | Salt Lake Co. Big Cottonwood… | — |  |  |   |  | 
                       
                        
                            
                            
                                | Myxosporium everhartii Sacc. & P.Syd. | G. D. Darker s.n. | 29 Mar 1936 | United States of America | Massachusetts | Middlesex Co. | — |  |  |   |  | 
                       
                        
                            
                            
                                | Uromyces intricatus Cooke | G. D. Darker 5802 | 30 Jul 1936 | United States of America | Utah | Salt Lake Co. | — |  |  |   |  |