Davis — Parasitic Fungi in Wisconsin — III. 255 



dependent sporules. Some of the sporules attain a length of 

 30/*. 



Gloeosporium thalictri Davis. In specimens collected at 

 Phlox the spots are larger (10-15 mm.) and sometimes less defi- 

 nite than in the type. They become sordid-arid above and the 

 central portion falls away. The acervuli are light brown and 

 amphigenous. 



The fungus recorded in the provisional list under the name 

 Cylindrosporium leptospermam Pk. was originally described as 

 a Cercospora and the change, for which I was perhaps in some 

 degree responsible, seems to me to have been ill advised. As I 

 see it the fungus belongs in Hyphales, Mucedinaceae, microne- 

 meae, scolecpsporae and I know of no genus into which it fits. 



As a result of inoculation experiment by B. B. Higgins the 

 Cylindrosporium padi Karst. of the provisional list has been 

 divided into three species and connected each with an ascigerous 

 stage upon the fallen leaves the following spring. According to 

 this classification our Wisconsin species would stand as follows: 

 Cylindrosporium hiemale Higgins 

 On Prunus pennsylvanica 

 cuneata 

 Cerasus (cult.) 

 Aseogenous state Coccomyces hiemalis Higgins. 



Cylindrosporium prunophorae Higgins 

 On Prunus domestica (cult.) 

 Aseogenous state Coccomyces prunophorae Higgins. 



Cylindrosporium lutescens Higgins. 

 On Prunus serotina. 

 virginiana 

 Aseogenous state Coccomyces lutescens Higgins. I assume- 

 that the fungus on Prunus cuneata is identical with that affect- 

 ing other members of the host group. Inasmuch as the host of 

 the typical Cylindrosporium padi Karst. is a member of the 

 same group as are the hosts of C. lutescens Higgins the distinct- 

 ness of the latter species is not established. 



Ramularia dioscoreae Ell. & Evht. (Proc. Acad. Nat. Sci., 

 Phila., 1891, p. 85) was founded upon leaves of Smilax bearing 

 Ramularia subrufa Ell. & Hoi. It is therefore to be elided. 



