Davis—Notes on Parasitic Fungi in Wisconsin — XI. 289 
For the species recorded in the provisional list as Ovularia 
ohliqua (Cke.) Oud. the name 0. monosporia (West.) Sacc. should 
be used because of priority (Sylloge Fungorum 22: 1296). 
A collection on Mentha arvensis canadensis made at Arena in 
September and referred to Bamularia variata Davis bears conidia 
but about IfjL thick. 
When well developed the conidia of Cercospora ampelopsidis Pk. 
are obclavate 60-80x5-6/^. 
The conidial tufts of Cercospora galii Ell. & Hoi. are usually 
red until death of the host-tissue takes place. Fasciculi of this 
color are more often seen on the small leaved species of host. 
There are a number of Compositae that bear Cercospora of a 
brown color in both Europe and America. In “Notes” VIII, p. 
430 forms on Kudbeckia and Prenanthes were included in Cer¬ 
cospora tahacina Ell. & Evht. Until more is known of their rela¬ 
tionship to each other it is perhaps better to keep the forms on the 
different host genera distinct. I am therefore labeling the speci¬ 
mens on Prenanthes Cercospora hrunnea Pk., although it may be 
that this is not distinct from C. prenanthis Ell. & Kell, as the 
brown color is not always conspicuous. C. rudbeckiae Pk. seems to 
be a synonym of 0. tabacina Ell. & Ev. which was published in 
1888 not 1886 as given in the Sylloge Fungorum. I append notes 
of a specimen on Prenanthes alba collected in Iowa County July 1, 
1922. Conidiophores in dense fascicles arising from substomatal, 
black, stromatoid tubercles, fuligenous, simple, flexuose, sometimes 
geniculate, continuous or sparingly septate, 50x80x4/x; conidia cyl¬ 
indrical to subclavate, nearly hyaline, straight or curved, 
20x60x3-5/x. Macroscopically the angular areas are tobacco brown. 
The form on Ambrosia issued in Fungi Columbiani 2117 under the 
name Cercospora racemosa E. & M. appears to be a member of 
this group which seems closely related to C. ferruginea Fckl. oc¬ 
curring on Compositae in Europe. 
Although Puccinia cryptotaeniae Pk. was recorded in the fourth 
supplementary list I find that it was not included in the Provi¬ 
sional list. It has been collected at Kacine, Ridgeway, and at 
the Dells of the Wisconsin River in Adams County. 
If one reads the descriptions of Septoria besseyi Pk. on Fraxinus 
pennsylvanica lanceolata and Marssonina fraxini (Ell. & Davis) 
on Fraxinus nigra they appear to be quite distinct in their micro- 
