LIST OF SPECIFIC DISEASES OF PLANTS 439 



Hollyhock 

 (Althaa rosea, Cav.) 



Anthracnose {Colletotrichum malvarum (Braun. & Casp.), Southworth). 



Descr. lUus., Journ. Mycol., Vol. VI, pp. 46-48 (1890). 



Treat, (pos.), Journ. Mycol., Vol. VI, p. 50 (1890). 



N. J. Agr. Exp. Sta., Rep. 11, 1890, p. 362 (1891). 

 Leaf-blight {Cercospora althceina, Sacc). 



Descr., N. J. Agr. Exp. Sta., Rep. 11, 1890, p. 361 (1891). 



Treat, (pos.), N. J. Agr. Exp. Sta., Rep. 11, 1890, p. 361 (1891). 

 Leaf-Spot (Phyllosiicta althceina, Sacc.).' 



Descr., N. J. Agr. Exp. Sta., Rep. 12, 1891, p. 297 (1892). 

 Rust (Puccinia mahacearum, Mont.). 



Descr. lUus., N. Y. (Corn. Univ.) Agr. Exp. Sta., Bull. 25, p. 154 (1890). 

 Phytopath. i, pp. 53-62 (1911). 



Treat, (rec), N. Y. (Corn. Univ.) Agr. Exp. Sta., Bull. 25, p. 155 (1890). 

 Rust {Puccinia heterogenea, Lagerh.) 



Descr. Illus., Journ. Mycol., Vol. VII, pp. 44-47 (1891). 



Hop 



(Humtdtis japonicus, Sieb & Zucc.) 



Powdery Mildew {Spharothcca humuli (DC), Burr.). 



N. Y. Corn. Bull. 328, pp. 281-310, figs. 19 (March, 1913). 



N. Y. State Bull. 395, pp. 29-80, pis. 2, figs. 2 (February, 1915). 



Horse-chestnut 



{jEscuIus hippocastanum, L.) 



Leaf-blotch (Guignardia ce.'culi (Pk.) Stewart). Phytopath. 6, 5-19, 1916. 

 Leaf-spot (PhyllosHcta pavia, Desm.). 



Descr., N. Y. Agr. Exp. Sta., Rep. 15, 1896, p. 456 (1897). 

 Tr. (pos.), Journ. Mycol. Vol. VII, p. 353; Phytopathology 4, 399 (December, 

 1914) 



Horseradish 



{Cochlearia armoracia, L.) 



Leaf -blight (Ramularia armoracia, Fckl.). 



Occ, N. J. Agr. Exp. Sta., Rep. 11, 1890, p. 360 (1891). 

 Leaf-mold (Macrosporium herculeum. Ell. & Mart.). 



Occ, N. Y. Agr. Exp. Sta., Rep. 15, 1896, p. 452 (1897). 

 ' The dififerent species oi PhyllosHcta will be found described in The North Ameri- 

 can Phyllostictas with Descriptions of the Species, published up to August, 1900 by 

 J. B. Ellis and B. M. Everhart, Vineland, N. J., December, 1900. 



