Davis — A Provisional List of Parasitic Fungi. 911 



PUCCINIA RECEDENS Syd. 

 On SenecHo aureus III. 



PUCCINIA CIRSII-LANCEOLATI Schroet. 

 On Cirsium lanceolatum I, II, III. 



PUCCINIA CIRSII Lasch 



On Cirsium discolor II, III. 

 altissimum II, III. 



PUCCINIA OBTEGENS (Lk.) Tul. 

 On Cirsium arvense 0, II, III. 



PUCCINIA TARAXACI (Rebent.) Plowr. 

 On Taraxacum officinale II, III. 



PUCCINIA HEMISPHAERICA (Pk.) Ell. & Evht 

 On Lactuca pulchella II, III. 



PUCCINIA ORBICULA Pk. 



On Prenanthes alba II, III. 



PUCCINIA HIERACII (Schum.) Mart. 

 On Hieracium scabrum II, III. 

 canadense II, III. 



GYMNOCONIA PECKIANA (Howe) Trotter 

 On Rubus occidentalis I, III. 



idaeus aculeatissimus I. 

 triflorus III. 

 allegheniensis I, III. 

 canadensis III. 



TRIPHRAGMIUM CLAVELLOSUM Berk. 

 On Aralia nudicaulis III. 



GYMNOSPORANGIUM CORNUTUM (Pers.) Arth. 

 On Pyrus amerieana I. 



GYMNOSPORANGIUM DAVISII Kern 

 On Juniperus communis depressa III. 

 Pyrus melanocarpa I. 



GYMNOSPORANGIUM CLAVIPES Cke. & Pk. 

 On Juniperus communis depressa III. 

 Amelanchier oblongifolia I. 

 Cydonia vulgaris I. 



