Davis—Parasitic Fungi in Wisconsin — III. 
255 
dependent sporules. Some of the spornles attain a length of 
30/x. 
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 aeervnli are light brown and 
amphigenons. 
The fungus recorded in the provisional list under the name 
Cylindrosporium leptospermum 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 Primus pennsylvanica 
cuneata 
Cerasus (cult.) 
Ascogenous state Coccomyces hiemalis Higgins. 
Cylindrosporium prunophorae Higgins 
On Prunus domestica (cult.) 
Ascogenous state Coccomyces prunophorae Higgins. 
Cylindrosporium lutescens Higgins. 
On Prunus serotima. 
virginiana 
Ascogenous 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 siibrufa Ell. & Hoi. It is therefore to be elided. 
