128 ILLINOIS STATE ACADEMY OF SCIENCE 



Type specimen No. 4725, Herbarium Illinois Plant Di- 

 sease Survey. This leaf spot was rather rare in the lo- 

 cality where it was collected although the host plant 

 was fairly abundant. A critical study of the Septorias 

 on Ranunculus is needed. 



Gloeosporium Impatientis n. sp. Spots numerous, 

 large (3-15 mm.) circular or more often irregular, rusty 

 brown with red to purple border on upper surface, gray- 

 ish beneath ; acervuli numerous, small, pulvinate, or elon- 

 gate and large along prominent veins, pink to white, 

 hypophyllous ; spores oblong-ovate, 3.5-5x15-23 microns, 

 contents granular, basidia very short or absent. 



On Impatiens hiflora. Urbana, Illinois (Brownfield 

 Woods). August 19, 1921. 



Type specimen No. 4722, Illinois Plant Disease Survey 

 Herbarium. 



This spot has appeared annually during the past three 

 years in the regions wher-e it was first collected. It 

 seems to cause considerable injury to the host. It is 

 also common about Crawfordsville, Indiana, where it 

 was collected by H. B. Dorner, September 23, 1907, and 

 was later observed by the writer in a number of locali- 

 ties in Montgomery County, Indiana. The collection by 

 H. B. Dorner is labelled ^^ Impatiens aurea^\ {I. pallida 

 Nutt.), but it is probable that this is a mistake since I. 

 biflora is by far the more common species about Craw- 

 fordsville. The collection by Dorner is No. 4721 of the 

 Illinois Plant Disease Survey Herbarium. 



Phyllosticta Raiinesquii n. sp. Spots few, mostly on 

 lower leaves, 2-5 mm., circular, light brown with small 

 definite gray center. Pycnidia, few, scattered on spots 

 on living leaves, but more numerous on dead leaves, 

 Epiphyllous, black (brown under microscope with cells 

 of neck much darker), flask shaped, 120-175 microns with 

 neck 50-60 microns. Pycnospores oblong, 1-3 guttulate, 

 3-4 X 10-14 microns. Differs from Phyllosticta Violae 

 Desm. in larger size of spores and pycnidia and in the 

 character of the spots. 



