| 
                                    Gymnosporangium
                                 | 
                                G. D. Darker 81 | 
                                Jul 1899 | 
                                United States of America | 
                                Colorado | 
                                Archuleta Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Puccinia tumidipes Peck
                                 | 
                                G. D. Darker 1029 | 
                                16 Aug 1922 | 
                                Canada | 
                                Ontario | 
                                Kempton Place, Streetsville | 
                                — | 
                                 | 
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                                | 
                                    Puccinia helianthi Schwein.
                                 | 
                                G. D. Darker 1042 | 
                                23 Aug 1922 | 
                                Canada | 
                                Ontario | 
                                Peel Reg. Mun. Streetsville | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Puccinia malvacearum Bertero ex Mont.
                                 | 
                                G. D. Darker 1046 | 
                                24 Aug 1922 | 
                                Canada | 
                                Ontario | 
                                Peel Reg. Mun. Streetville | 
                                — | 
                                 | 
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                                | 
                                    Puccinia menthae Pers. var. menthae
                                 | 
                                G. D. Darker 1048 | 
                                26 Aug 1922 | 
                                Canada | 
                                Ontario | 
                                Peel Reg. Mun. Eldorado Parks | 
                                — | 
                                 | 
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                                | 
                                    Lophodermium tumidum (Fr.) Lambotte & Rehm
                                 | 
                                G. D. Darker 1180 | 
                                16 Aug 1923 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Bear Island, Lake… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
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                                | 
                                    Claviceps purpurea (Fr.) Tul.
                                 | 
                                G. D. Darker 1219 | 
                                05 Sep 1923 | 
                                Canada | 
                                Ontario | 
                                Bear Island, Lake Timagami, Nipissing… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Hypoderma desmazierii Duby
                                 | 
                                G. D. Darker 1226 | 
                                06 Sep 1923 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Bear Island, Lake… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Stegopezizella balsameae (Davis) Syd.
                                 | 
                                G. D. Darker 1241 | 
                                11 Sep 1923 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Bear Island, Lake… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Lophodermium nitens Darker
                                 | 
                                G. D. Darker 1270 | 
                                27 May 1924 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Bear Island, Lake… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Lophodermium lacerum Darker
                                 | 
                                G. D. Darker 1398 | 
                                18 Sep 1924 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Bear Island, Lake… | 
                                — | 
                                 | 
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                                | 
                                    Nyssopsora clavellosa (Berk.) Arthur
                                 | 
                                G. D. Darker 1558 | 
                                14 Aug 1925 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Lake Timagami, Bear… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Nyssopsora clavellosa (Berk.) Arthur
                                 | 
                                G. D. Darker 1558 | 
                                14 Aug 1925 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Lake Timagami, Bear… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Bifusella crepidiformis Darker
                                 | 
                                G. D. Darker 1569 | 
                                21 Aug 1925 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Lake Timagami | 
                                type | 
                                 | 
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                                | 
                                    Bifusella crepidiformis Darker
                                 | 
                                G. D. Darker 1569 | 
                                21 Aug 1925 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Lake Timagami | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Bifusella crepidiformis Darker
                                 | 
                                G. D. Darker 1569 | 
                                21 Aug 1925 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Lake Timagami | 
                                co-type | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Bifusella crepidiformis Darker
                                 | 
                                G. D. Darker 1569 | 
                                21 Aug 1925 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Lake Timagami, Island… | 
                                type | 
                                 | 
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                                | 
                                    Herpotrichia parasitica (R.Hartig) Rostr.
                                 | 
                                G. D. Darker 1578 | 
                                26 Aug 1925 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Lake Timagami, Bear… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Puccinia porphyrogenita Curtis
                                 | 
                                G. D. Darker 1594 | 
                                03 Sep 1925 | 
                                Canada | 
                                Ontario | 
                                Lake Timagami, Bear Island | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Puccinia fraseri Arthur var. fraseri
                                 | 
                                G. D. Darker 1964 | 
                                20 Jun 1927 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Bear Island, Lake… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Lophodermium nitens Darker
                                 | 
                                G. D. Darker 2017 | 
                                04 Jul 1922 | 
                                Canada | 
                                Ontario | 
                                York Reg. Mun. Bond Lake | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
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                                | 
                                    Bifusella crepidiformis Darker
                                 | 
                                G. D. Darker 2221 | 
                                21 Jun 1928 | 
                                Canada | 
                                Ontario | 
                                Nipissing Distr. Lake Timagami, Island… | 
                                probable paratype | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Hypodermella concolor (Dearn.) Darker
                                 | 
                                G. D. Darker 2305 | 
                                18 Jul 1928 | 
                                Canada | 
                                Ontario | 
                                Long Island, Lake Timagami | 
                                — | 
                                 | 
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                                | 
                                    Naevia piniperda Rehm
                                 | 
                                G. D. Darker 2325 | 
                                30 Jul 1928 | 
                                Canada | 
                                Ontario | 
                                Bear Island, Lake Timagami | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Puccinia iridis Wallr.
                                 | 
                                G. D. Darker 2387 | 
                                30 Aug 1928 | 
                                Canada | 
                                Ontario | 
                                at entrance to Long Portage… | 
                                — | 
                                 | 
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                                | 
                                    Taphrina darkeri Mix
                                 | 
                                G. D. Darker 3082 | 
                                15 Aug 1929 | 
                                United States of America | 
                                Oregon | 
                                Near Cedar camp, Head of… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Perenniporia fraxinophila (Peck) Ryvarden
                                 | 
                                G. D. Darker 3310 | 
                                28 Dec 1929 | 
                                Canada | 
                                Ontario | 
                                York Reg. Mun. Humber River,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Pileolaria brevipes Berk. & Ravenel
                                 | 
                                G. D. Darker 3628 | 
                                05 Oct 1931 | 
                                Canada | 
                                Ontario | 
                                York Reg. Mun. High Park | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Rhabdocline pseudotsugae Syd.
                                 | 
                                G. D. Darker 4725 | 
                                21 May 1933 | 
                                United States of America | 
                                Massachusetts | 
                                Essex Co. Matthew's Estate | 
                                — | 
                                 | 
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                                | 
                                    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 | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
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                                | 
                                    Puccinia orbicula Peck & Clinton
                                 | 
                                G. D. Darker 4765 | 
                                04 Jul 1933 | 
                                United States of America | 
                                Massachusetts | 
                                Spring Pond, near Lynn | 
                                — | 
                                 | 
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                                | 
                                    Cordyceps superficialis (Peck) Sacc.
                                 | 
                                G. D. Darker 4860 | 
                                27 Aug 1933 | 
                                United States of America | 
                                Massachusetts | 
                                Norfolk Co. Norwood. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Keithia tsugae (Farl.) E.J.Durand
                                 | 
                                G. D. Darker 4972 | 
                                30 Nov 1933 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
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                                | 
                                    Schizonella melanogramma (DC.) Schroet.
                                 | 
                                G. D. Darker 5000 | 
                                27 May 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Waltham | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Schizonella melanogramma (DC.) Schroet.
                                 | 
                                G. D. Darker 5000 | 
                                27 May 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Waltham | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Urocystis agropyri (Preuss) Schroet.
                                 | 
                                G. D. Darker 5014 | 
                                08 Jun 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Urocystis agropyri (Preuss) Schroet.
                                 | 
                                G. D. Darker 5014 | 
                                08 Jun 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Waltham | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Urocystis agropyri (Preuss) Schroet.
                                 | 
                                G. D. Darker 5014 | 
                                08 Jun 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Waltham | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Keithia tsugae (Farl.) E.J.Durand
                                 | 
                                G. D. Darker 5043 | 
                                28 Jan 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Suffolk Co. Arnold Arboretum | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Keithia tsugae (Farl.) E.J.Durand
                                 | 
                                G. D. Darker 5043 | 
                                28 Jan 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Suffolk Co. Arnold Arboretum | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
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                                | 
                                    Bifusella faullii Darker
                                 | 
                                G. D. Darker 5105 | 
                                23 Aug 1934 | 
                                United States of America | 
                                New York | 
                                near Blue Mt. Lake, Adirondack… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Plasmopara australis (Speg.) Swingle
                                 | 
                                G. D. Darker 5159 | 
                                28 Aug 1934 | 
                                Canada | 
                                Ontario | 
                                York Reg. Mun. Swansea | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
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                                | 
                                    Puccinia calcitrapae var. bardanae (Wallr.) Cummins
                                 | 
                                G. D. Darker 5160 | 
                                31 Aug 1934 | 
                                Canada | 
                                Ontario | 
                                York Reg. Mun. Near Mouth… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
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                                | 
                                    Puccinia angustata Peck
                                 | 
                                G. D. Darker 5231 | 
                                12 Oct 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Norfolk Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Phragmidium americanum (Peck) Dietel
                                 | 
                                G. D. Darker 5245 | 
                                20 Oct 1934 | 
                                United States of America | 
                                Massachusetts | 
                                Stony Brook Reservation | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    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 | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    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 | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                 |