Davis—Notes on Parasitic Fungi in Wisconsin — IV. 683 
Springs. Good specimens were collected on Isle Royale, Michi¬ 
gan, by Stuntz and Allen in 1901. 
Exoascus mirabilis Atk. On Prunus americana (cult). 
Mountain. Collected also by Prof. L. R. Jones on wild plum 
trees at Albion and Rdgerton. Some of the galls bear Monilia 
with conidia mostly about 15 x 7-9/x. 
Sporonema phacidioides Desm. (Phyllosticta medicaginis 
(Fckl.) Sacc.). On Medicago sativa (cult.) as well as the ascig- 
erous stage, Pyrenopezixa medicaginis Fckl. Madison, (F. R. 
Jones.) 
Phyllosticta ivaecola Ell. & Evht. On Iva xanthifolia. Dres¬ 
ser Junction. 
Asteroma tiliae Rud. 
On Tilia americana . Bell Center. 
Asteroma ribicolum Ell. & Evht. On Ribes americanum. 
Lake Mills, Madison and Gays Mills. It has also been observed 
in Kenosha county but always sterile whether on living leaves 
or on fallen leaves in the spring. Material wintered outdoors 
in a wire cage showed no further development in June. 
Perhaps this is not distinct from the European Asteroma 
umbonatum Desm. 
Stagcmospora atriplicis (West.) Lind. 
Of a collection on leaves of Chenopodium (Rlitum) capitatum 
made at Laona July 14, 1915, the following characters were 
noted: Spots light brown, subcircular to irregular, 3-10 mm. 
in diameter; pycnidia epiphyllous, scattered, having a thin cel¬ 
lular wall which is hyaline below and black above especially 
about the 'large ostiole, 120-150^ in diameter; sporules hyaline, 
oblong, straight, or sometimes curved, 15-21 x 7-9/x, 1-3 septate. 
This I have referred to Ascochyta chenopodii (Karst.) Rostr. 
A collection on the same species of host made at Sturgeon 
Bay by R. E. Vaughan, August 21, 1913, has smaller, paler 
spots, more uniformly colored pycnidia and sporules but 8-15 x 
2^2-3^ with one or occasionally two or three septa. This I have 
referred to Septoria chenopodii West. Ellis & Everhart N. A. F. 
2nd series 3076 issued under the name Septogloeum atriplicis 
Desm. with Phyllosticta atriplicis given as a synonym is the 
same fungus. It seems not improbable that these are forms of 
a single species. [Since this was written I have observed that 
