| Peronospora | S. M. Pady | 15 Jun 1948 | Canada | Quebec | Near Waterloo | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora calotheca de Bary | C. L. Kramer 2749 | 08 Jun 1958 | United States of America | Kansas | Leavenworth Co. Ft. Leavenworth, bottom… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora calotheca de Bary | — | 1887 | United States of America | Iowa | Winneshiek Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora potentillae de Bary | A. L. Welden | 03 Mar 1974 | United States of America | Louisiana | Saint James Parish. Near Bonnet… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora alsinearum Casp. | A. S. Hitchcock s.n. | 11 May 1889 | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora alsinearum Casp. | — | 01 May 1887 | United States of America | Iowa | Winneshiek Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora alsinearum Casp. | A. Ludwig | 22 Sep 1913 | Germany | — | Ackerman Kreuzberg | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora cynoglossi var. echinospermii Severini | A. S. Hitchcock | Summer 1889 | United States of America | Kansas | Riley Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora cynoglossi var. echinospermii Severini | R. H. Pond | Jun 1896 | United States of America | Kansas | Riley Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora | S. M. Pady | 17 Jun 1947 | Canada | Quebec | Rock Quarry, St. Johns | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora | S. M. Pady | 15 Jun 1948 | Canada | Quebec | Near Abbottsford | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora echinospermii (D.B.Swingle) D.B.Swingle | E. Bartholomew 611 | 13 Jun 1892 | United States of America | Kansas | Rooks Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora echinospermii (D.B.Swingle) D.B.Swingle | E. Bartholomew 615 | 13 Jun 1892 | United States of America | Kansas | Rooks Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora echinospermii (D.B.Swingle) D.B.Swingle | E. Bartholomew 228 | 05 Jun 1892 | United States of America | Kansas | Rooks Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora viciae (Berk.) Casp. | — | 17 Jul 1888 | United States of America | Colorado | Wet Mountain Valley | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora viciae (Berk.) Casp. | M. A. Carleton C109 | 04 Jun 1888 | United States of America | Kansas | Cloud Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | S. M. Pady 2750 | 10 May 1959 | United States of America | Kansas | Pottawatomie Co. Pottawatombie State Lake | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | G. W. Wilson K104 | 11 May 1918 | United States of America | Kansas | Laurner | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | C. M. Khanna 1 | 01 Mar 1955 | India | — | Delhi University Gardens | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | M. A. Carleton C66 | 28 Apr 1888 | United States of America | Kansas | Cloud Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | M. A. Carleton C80 | 15 May 1888 | United States of America | Kansas | Wichita | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | M. A. Carleton C806 | 22 May 1888 | United States of America | Kansas | Cloud Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | B. Brown 53 | 10 Jun 1891 | United States of America | Kansas | Osborne Co. Natoma | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | W. A. Kellerman 3088 | 08 Apr 1890 | United States of America | Kansas | Riley Co. Manhattan | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | S. M. Pady | 25 Jan 1944 | United States of America | Texas | Hidalgo Co. 2 mi E… | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | B. G. Montserin | 02 Jul 1926 | Canada | Quebec | St Anne de Bellevue | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | E. Bartholomew 292 | 29 May 1889 | United States of America | Kansas | Rooks Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | C. H. Thompson 25 | 18 Apr 1891 | United States of America | Kansas | Riley Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | E. Bartholomew 306 | 04 Jun 1889 | United States of America | Kansas | Rooks Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | E. Bartholomew 278 | 09 Jun 1892 | United States of America | Kansas | Rooks Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | A. S. Hitchcock | Jun 1887 | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | — | 1878 | — | — |  | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | A. S. Hitchcock | Sep 1887 | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | A. S. Hitchcock | May 02 | United States of America | Iowa | Story Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | A. S. Hitchcock s.n. | s.d. | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | A. S. Hitchcock s.n. | May 1887 | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | — | 1921 | United States of America | Washington | Island Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | A. S. Hitchcock | Jun 1887 | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora parasitica (Pers.:Fr.) Fr. | A. S. Hitchcock s.n. | May 17 | United States of America | Iowa | Story Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora affinis Rossmann | A. Ludwig | 10 Aug 1913 | Germany | — | Oetinger Talchen | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora effusa (Grev.) Tul. | L. M. Underwood | Jun 1887 | United States of America | New York | Onondaga Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora effusa (Grev.) Tul. | A. S. Hitchcock | 21 Jun | United States of America | Iowa | Story Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora effusa (Grev.) Tul. | A. S. Hitchcock | May 07 | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora effusa (Grev.) Tul. | E. Bartholomew 299 | 30 May 1889 | United States of America | Kansas | Rooks Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora effusa (Grev.) Tul. | — | 21 Aug 1887 | United States of America | Iowa | Winneshiek Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora effusa (Grev.) Tul. | E. Bartholomew | 30 May 1889 | United States of America | Kansas | Rooks Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora effusa (Grev.) Tul. | A. S. Hitchcock | Jun 1887 | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora effusa (Grev.) Tul. | A. S. Hitchcock | May 07 | United States of America | Iowa | Johnson Co. | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora obovata Bonord. | A. Ludwig | 08 Jun 1913 | Germany | — | Altweiler | — |  |  |  |  | 
                       
                        
                            
                            
                                | Peronospora oxybaphi Ellis & Everh. | A. S. Hitchcock | Summer 1889 | United States of America | Kansas | Riley Co. | — |  |  |  |  |