270 



Mycologia 



60. Nectria episphaeria (Tode) Fries, Summa Veg. Scand. 



388. 1845. 



Sphaeria episphaeria Tode, Fungi Meckl. 2: 21. 1791. 



On old sphaeriaceous fungi, Fargo, N. Dakota, 1907-8. 

 F.J. S. 



61. Nectria seminicola Seaver, Mycologia 1: 21. 1909. 

 On seeds of skunk cabbage, Spathyema foetida, autumn, 1906. 



F. J. S. 



The material issued under this number is cotype. The species 

 has been observed during the present season, 1909, on similar 

 habitat. 



62. Peronospora calotheca de Bary ; Rabenh. Herb. Viv. Myc. 



II.673. 1858. 



On Galium boreale L., Fayette, Iowa, July 1, 1909. G. W. W. 



Local but where present rather abundant. While other species 

 of Galium grow with the infected one, the fungus appears to be 

 confined to the one host. 



63. Peronospora parasitica (Pers.) Fries, Summa Veg. Scand. 



493. 1849. 



Botrytis parasitica Pers. Obs. Myc. 1 : 96. pi. 5, /. 6. 1796. 

 Peronospora Dentariae Rabenh. Fungi Europ. 86; Fl. 42: 436. 



1859. 



On Dentaria laciniata Muhl., Fayette, Iowa, May 14, 1908. 



G. W. W. 



Not abundant on the present host, at least locally. 



64. Peronospora Trifoliorum de Bary, Ann. Sci. Nat. IV. 20: 



117. 1863. 



On leaves of Astragalus carolinianus L., Fayette, Iowa, June 

 5, 1908. G. W. W. 



Rather an uncommon species which is locally abundant on this 

 host. The form on Astragalus may be distinct from that on 

 Trifolium and Me die ago. 



