North Dakota Fungi 



289 



Pleonectria berolinensis Sacc. 



On Ribis rubrum and R. floridum. Kulm, July, 1909. 

 (Fungi Dak. 125, 239.) 



Pleosphaerulina corticola (Fuckel) f. Rosae Rehm. 

 On Rosa sp. Kulm, March, 19 13. 



Pleosphaerulina corticola (Fuckel) f. Crataegi Rehm. 

 On Crataegus mollis. Kulm, March, 19 13. 



Pleospora diaportheoides Ellis & Everh. 



On Helianthus Maximiliani. Kulm, September, 19 13. 



Pleospora Lecanora (Falve) Rehm. 



On Salsola tragus. Kulm, July, 19 13. 

 (Fungi Dak. 240.) 



Pleospora permunda Cooke. 



On Urtica gracilis. Kulm, September, 19 13. 



Pleospora vagans Niessl. 



On Poa serotina. Kulm, August, 19 13. 



Pleospora vulgaris Niessl. f. astericola Rehm. 

 On Aster multiflorus. Kulm, July, 19 13. 



Plowrightia morbosa (Schw.) Sacc. 



On Prunus Bessii, P. americana and P. melanocarpa. 

 (Fungi Dak. 97, 410.) 



Plowrightia Symphoricarpi Ellis & Everh. 



On Symphoricarpos occidentalis. Kulm, April, 1909. 



Podosphaera Oxyacanthae (DC.) DeBary. 

 On Crataegus mollis. Fargo, Stevens. 

 On Prunus Bessii, Dickenson, September, 19 16. 

 On Prunus americana and P. melanocarpa. 

 (Fungi Dak. 146, 28S.) 



Propolis faginea (Schrad.) Karst. 



On old wood. Fargo, August, 1907, Seaver. 



Pseudopeziza Medicaginis (Lib.) Sacc. 



On Medicago sativa. Fargo, August, 1907, Seaver. 



Pseudotthia Symphoricarpi (Ellis & Everh.) Rehm. 



On Symphoricarpos occidentale. Kulm, February, 1913. 

 (Fungi Dak. 98.) Syn. Otthia Symphoricarpi Ellis & Everh. 



Pyrenopeziza Absinthii (Lasch.) Rehm. 



On Iva xanthiifolia. Kulm, March, 191 o. 

 (Fungi Dak. 215.) 



Saccobolus Kerverni (Crouan) Boud. 



On cow dung. Sykeston, 1908, Seaver. 



Saccobolus violascens Boud. 



On horse dung. Sykeston, 1908, Seaver. 



