134 Wisconsin Academy of Sciences, Arts mid Letters. 



216. Uredo, sp. 



On Mimulus ringenslj., in company with Aecidiimi pentstemonis 

 Scliw. La Crosse, Pammel. 

 Sori small, scattered loosely over both surfaces of the leaf; spores pale 

 orange, very irregular, unevenly warted, 10x23— 15xi6/i. 



217. Uredo polypodii (P.) ( U. filicum D C, U. aspicliotus Pk.?). 



On Cystopteris fragilis Bernb., in May and June. Madison, Kil- 

 bourn City. 

 Spores obovate to pyriform, smooth, 13— 20X23— 26//, usually, 18.5x25yU'; 

 thinner walled than European specimens on Cystopteris and Phegopteris. 



218. Caeoma nitens Schw. (C. luminatum Schw.). 



Common in spring, on wild and cultivated plants of Rubus occi- 

 dentalis L. and R. villosus Ait. Syene, Stoughton, Madison; 

 Baraboo, La Crosse, Pammel; Janesville, Kellogg. 

 The common red-rust of raspberries. The orange rust which occurs in 

 autumn is referred to No. 205. 



ISOLATED AECIDIAL FORMS. 



219. Aecidium"' pustulatum Curt. 



On Comandra umbellata Nutt., in spring. Midisoa; Columbus,, 

 Rockwell. 



220. Aecidium polemonii Peck. 



On Phlox pilosa L. and Polemonium reptans L. Common, in 

 spring. Madison. 



221. Aecidium podophylli Schw. 



On Podophyllum peltatum L., in June. Madison. 

 Sometimes associated with Puccinia podophylli Schw., which, however, 

 more commonly occurs without any trace of the aecidium. 



223. Aecidium oenotherae Peck. 



Very common in spring and summer, on Oenothera biennis L. 

 Stoughton, Madison; Baraboo, Pammel; Sauk City, Liiders. 



223. Aecidium lysimachiae Lk. 



On Steironema lanceolata Raf . (?) La Crosse, Pammel. 



224. Aecidium solani Mont. 



On Physalis virginica Mill, and P. lanceolata Michx. Sauk City^ 

 Liiders. 



* This name is sometimes written Oecidium. See Malinvaud, Bull. Soc. Bot. France, 1880,. 

 No. 5. 



