Davis—Parasitic Fungi in Wisconsin — II. 
101 
Puccinia curtipes Howe. On Tiarella cordifolia. Devils 
Lake. 
Phragmidium disciflorum (Tode) Janies. Uredinia and telia 
on Rosa acicularis at Ellison Bay are probably Ph. rosae-acicu- 
laris Liro if one accepts that as a distinct species. 
Melampsoropsis cassandrae (Pk. & Cl.) Arth. Aecia (Peri - 
dermium consimile Arth. & Kern) on Picea canadensis . Wau- 
sankee. 
Uredinopsis atkinsonii Magn. A collection on Cystopteris 
bulbifera from the Wisconsin river bluff opposite Bridgeport I 
have referred to this species. 
Additional Species. 
Not previously reported as occurring in Wisconsin. 
Plasmopara viburni Pk. On Viburnum Opulus americanum. 
Wausaukee and Athelstane. Conidia and. oospores. Oospores 
subepidermal, oogonia globose, usque 48/a in diameter, wall often 
irregularly thickened; oospores globose, 24-37/a in diameter, wall 
2-4/a thick, smooth or nearly so. 
Asterina cupressina Cke. On Juniperus commums depressa. 
Fish Creek. 
Ascochyta Wisconsin a n. sp. ad interim. Spots orbicular to 
elliptical, gray with a narrow black border and frequently zonate 
above, brown with a less definite margin below, 1-3 cm. long; 
pycnidia epiphyllous, scattered, brown, prominent, globose to 
sublenticular, 85-110/a in diameter; sporules ovoid to oblong, hy¬ 
aline, 4-8 x 2%-3 1 / ^/a. Some of the longer sporules have a me¬ 
dian septum and it is probable that well matured specimens 
would show this to be an Ascochyta. The affected leaf tissue 
seems quite friable and apparently fragments and falls away 
piecemeal. On Sambucus canadensis. Devils Lake. August 
7, 1913. On examining a specimen of Septoria sambucina Pk. 
collected at Racine it was found to bear also an Ascochyta with 
