Davis—■Notes on Parasitic Fungi in Wisconsin — VIII. 431 
Puccinia bardanae Cda. 
Telia on Arctium minus. Madison. This was first collected in 
Wisconsin by Dr. H. S. Jackson in 1918. It rapidly spread 
throughout the city. [Aecia and uredinia have since been col¬ 
lected.] 
Aecidium ingenuum Arth. (Bull. Towey Bot. Club 46:124). 
On Picea canadensis . Fish Creek and Solon Springs. This is 
of the type referred to Peridermium in the provisional list. It ap¬ 
pears to be rare. 
Herbarium of the University of Wisconsin, 
Madison, Wisconsin, April, 1920 
Description of Plates 
PLATE XXXI 
A. Apothecia of Phacidium planum n. sp. on leaf of Pinus Stratus. 
Magnified 35 diameters. B. Vertical section of an apothecium of the 
same. C. Asci, paraphyses, and, at the left, four free ascospores. Magni¬ 
fied about 350 diameters. Drawn with the aid of camera lucida by Charles 
Drechsler. 
PLATE XXXII 
A. Apothecia of Phacidium expansum n. sp. on leaf of Picea mariana. 
Magnified 4 diameters. B. Vertical section of an apothecium. C, D. 
Asci and paraphyses of same magnified about 350 diameters. Drawn by 
Charles Drechsler with the aid of camera lucida. 
