Phyllactinia suffulta (Reb.) Sacc. 



On Alnus incana, Alder. Common. Burl., Oct. 1890; G. 372. 



On Betula lutea, Yellow Birch. Newfane, Sept. 1892; G. 8G1. 



On Carpinus Caroliniana, Blue Beech. Burl., Sept. 1891; C. 862. 



On Celastrus scandens, Bittersweet. Abundant. Burl., Sept. 

 1892; J. 863. Newfane, Oct. 1892; G. 864. 



On Corylus rostrata, Hazel-nut. Burl., Oct. 1897 ; O. 866. 



On Fagus ferruginea. Beech. Newfane, Oct. 1892; G. 867. 



On Fraxinus pubescens. Red Ash. Beaver, Sept. 1897; O. 868. 



On Fraxinus sp. Burl., Oct. 1890; C. 869. 



On Hamamelis Virginiana, Witch Hazel. Newfane, Sept. 1892; 

 G. 870. 



On Ostrya Virginica, Lever-wood. Burl., Oct. 1890; C. 871. 

 On paper in plant press. Newfane, Sept. 1892; G. 872. 

 On Ribes Cynosbati, Gooseberry. Burl., Sept. 1897; O. 873. 

 On Sambucus Canadensis, Elder. Burl., Oct. 1897; O. 874. 



Podosphaera biuncinata C. & P. 



On Hamamelis Virginiana, Witch Hazel. Newfane, Oct. 1892 ; G. 

 875. Burl, Aug. 1896; G. 876. 



Podosphaera Oxycanthae (DC) DeBy. 



On Amelanchier Canadensis, Service-tree. Abundant and sometimes 

 seriously injurious. Burl., July, 1897 ; O. 878. Beaver, Sept. 1897; 

 O. 879. 



On Prunus sp.. Cherry. Burl., Aug. 1890; J. 371. Charlotte, 

 July, 1898; Waugh, 1881. 



On Spiraea salicifolia. Meadow-sweet. Newfane, Sept. 1892 ; G. 

 581. Beaver, Sept. 1897; O. 881. 



On Spiraea tomentosa, Hardhack. Abundant. Newfane, Oct. 

 1892; G. 882. Beaver, Sept. 1897; O. 883. 



Sph^rotheca Castagnei Lev. 



On Bidens frondosa. Beaver, Sept. 1897; O. 884. Waterbury, 

 Aug. 1898; O. 1879. 



On Erechtites hieracifolia. Fire-weed. Burl., Aug. 1898; H. 1880. 



On Prenanthes altissima. Burl., Sept. 1897; O. 885. 



On Solidago juncea. Golden Rod. Burl., Oct. 1897; O. 886. 



On Taraxacum ofificinale, Dandelion. Burl., Aug. 1890; J. 888. 

 Walden, Aug. 1898; O. 1899. 



