380 



Diseases of Economic Plants 



Gloeosporium. 



Gnomonia. 

 Gnomoniella. 

 Hendersonia. 

 Herpotrichia. 



Hypoderma. 



Keithia. 



Leptostroma. 



Leptothyrium. 



Lophodermium. 



Macrosporium. 



Marssonina. 



Microstroma. 



Monochaetia. 



Neopeckia. 



Peridermium. 



Pestalozzia. 



Phleospora. 



Phoma. 



Phyllosticta. 



Piggotia. 



Ramularia. 



Rhytisma. 



Rust (Uredinales) 



Septogloeum. 



Ash, beech, birch, butternut, hazel, hick- 

 ory, horse-chestnut, linden, maple, 

 p. 392, oak, pecan, p. 395, sycamore, 

 willow. 



Elm, p. 388. 



Hazel. 



Pine. 



Fir, incense cedar, larch, spruce, and 

 conifers generally. 



Larch, pine, p. 397, conifers. 



Arbor-vitae, hemlock. 



Locust. 



Oak. 



Fir, juniper, larch, pine, p. 398, spruce. 



Catalpa, hackberry. 



Ash, butternut, p. 382, chestnut, p. 388, 

 hickory, oak, poplar, p. 402, walnut, 

 willow. 



Hickory, walnut, Inga. 



Chestnut, p. 388, oak. 



Pine. 



Fir, hemlock, pine, p. 401, spruce. 



Oak, spruce, and conifers generally. 



Ehn, hackberry, sycamore, walnut. 



Plr, pine. 



Ash, beech, catalpa, p. 382, chestnut, 

 ehn, hackberry, hickory, horse-chest- 

 nut, p. 390, linden, maple, p. 392, oak, 

 poplar, sycamore, willow. 



Ash. 



Ash, hackberry, willow. 



Maple, p. 392, oak, willow. 



Ash, p. 381, birch, p. 382, cottonwood, 

 fir, larch, mountain ash, osage orange, 

 p. 394, pine, p. 395, poplar, p. 401, 

 shadbush, willow, p. 405. 



Willow. 



