84 Wisconsin Academy of Sciences, Arts, and Letters. 



Gloeosporium ribis (Lib.) Mont. & Desm. As it occurs in Wis- 

 consin this usually has the characters of the forma ribis nigri 

 amcricana Sacc. The sporules sometimes reach 30/* in length. 



Gloeosporium tremuloides Ell. & Evht. 2nd suppl. list no. 526 

 was omitted from the provisional list because of the belief that 

 the species was founded on imperfectly developed material of 

 Marssonina castagnei (D. & M.) Magn. which occurs in atypical 

 forms in Wisconsin. Oudemans proposed the variety monili- 

 ferae in which the acervuli are amphigenous although more abun- 

 dant above. In Wisconsin they are often hypophyllous only and 

 the sporules are often but 12-15/t long. Marssonina brunnea (E. 

 & E.) has been omitted, being considered, perhaps erroneously, 

 a form of M. castagnei. 



Ramidaria plantaginis Ell. & Mart. In the description of this 

 species the spots are said to be minute. Specimens on Plantago 

 Rugelii collected at Madison in September have spots up to 3 cm. 

 in diameter. Conidia appear also on the ealyces. 



Ramidaria alismatis Fautrey. This was reported in the third 

 supplementary list under the name Ascocliyta alismatis (Oud.) 

 Trail. Dr. R. A. Harper has kindly compared Wisconsin ma- 

 terial with the type of Ascochyta alismatis Ell. & Evht. in the 

 Ellis herbarium and finds them to be the same. The very short 

 undifferentiated conidia-bearing hyphae makes this an atypical 

 Ramularia. It is not unlikely that Septoria alismatis Oud. is of 

 the same character. The spots usually have a slight eminence 

 in the center as if a pycnidium lay beneath. (See Diedicke, 

 Ann. My col. 10A13). 



Ramularia uredinis (Voss) Sacc. This is the fungus recorded 

 in the supplementary and 3rd suppl. lists no. 330 under the name 

 Fusarium uredinum E. & E. The tufts are sometimes pink or 

 even testaceous. My measurements of the conidia, which are in 

 branched ••luiiiis, are from 7-17x3-4^. 



Ustilago osmundae Pk. This has been collected on Osmunda 

 regalis in Washburn and Burnett counties. I have not been able 

 to follow the author of the species in his reference of it to M y- 

 cosyrinx. (New York State Museum; Report of the Botanist 

 1911, p. 43). When the fungus is present each frond arising 

 from the rhizome bears the smut or else is sterile. 



