Davis—Notes on Parasitic Fungi in Wisconsin? — V. 693 
side of the trunk when moisture conditions are favorable for 
infection. After a rain the basal portion of the trunk remains 
moist long after the higher portions have dried off. This has 
since been collected in Adams and Juneau counties and its 
range in "Wisconsin probably approximates that of the host 
Pinus Banksiana. 
Peridermium pyriforme Pk. was collected during the same 
month at Melvina, Monroe County, and at Millston. As usual, 
in my experience in collecting this rust, but a single specimen 
was found in each locality. 
ADDITIONAL HOSTS 
A very scanty development of Bremia lactucae Kegel was ob¬ 
served at Arcadia on Krigia amplexicaulis. 
Plasmopara Jnalstedii (Farl.) Berl. & De Toni on Artemisia 
ludoviciana. Taylor. 
Peronospora potentillae D By. On Agrimonia striata . Ar¬ 
cadia. 
Peronospora rubi Rabh. On Bub us hispidus. Millston. But 
little of the mildew was seen on this host. 
JJncinula macrospora Pk. On JJlmus racemosa. St. Croix 
Falls. 
Taphrina coerulescens (Desm. & Mont.) Tul. On Quercus 
macrocarpa Granville. (I. A. Lapham, 1867.) 
PJiyllosticta decidua Ell. & Kell. On Agrimonia gryposepala. 
Arcadia. Sporules 4-5 x 2%-4/*, fuligenous tinted. 
Ascochyta wisconsina Davis. On Sambucus racemosa. Lynx- 
ville. 
Diplodia uvulariae Davis. On Uvularia grandiflora. Maiden 
Rock. This collection bears mostly pycnidia containing 
sporules 4-5 x lv which I take to be a spermogonial state. The 
Diplodia is immature, the sporules being still hyaline and but 
few of them septate. 
