428 Wisconsin Academy of Sciences, Arts, and Letters. 
amine a collection on Spiraea densiflora (given as S. corymbosaf) 
made at Wallace, Idaho, and referred to Septoria salicifoliae 
Trel. in Trans. Wis. Acad . 152: 776. In this collection the acer- 
vuli are epiphyllous as in C. spiraeicolum Ell. & Evht., but the 
spornles are of the C. salicifoliae type but unusually long and 
slender (50-100x2-3/*) and mostly but little curved. This may 
prove to be distinct. 
Eamularia repens Ell. & Evht. 
On Aralia nudicaulis. Nekoosa. 
Macroscopically this is indistinguishable from Cercosporella lep- 
tosperma Pk. 
Eamularia magnusiana (Sacc.) Lindau. 
On Trientalis americana. Prentice. In this collection the co- 
nidiophores spring from black, scattered, stromatoid tubercles. 
Cercosporella dearnessii Bubak & Sacc. 
On Solidago altissima. Madison. In this collection the conidio- 
phores are but 30-50/* long. Very long (up to 180//,) and slender 
conidia occur as well as short ones. They are sometimes bent. 
This seems to be close to the variable Eamularia virgaureae 
Thuem. 
Cladosporium astericola n. sp. 
Spots small, brown, indefinite, 1-4 mm. in diameter; conidio- 
phores mostly hypophyllous, fuligineous, scattered or somewhat 
fasciculate, erect or assurgent, straight or curved, denticulate, 
1—4- septate, constricted or not at the septa, 40-75x3-4/*;; co¬ 
nidia acro-pleurogenous, fuscous, catenulate, fusoid to subcylindri- 
cal, uniseptate, 10-20 x 3-5/*. On upper leaves and upper por¬ 
tions of stems of Aster umbellatus. Mellen, Wisconsin, August 4, 
1919. 
Cercospora ranunculi Ell. & Holw. 
On Eanunculus septentrionalis. Saxon. In this collection the 
conidiophores, which spring from black stromatoid tubercles, are 
shorter (30-65/*) and straighter than those of the type as de¬ 
scribed. 
In the provisional list a Cercospora occurring on Spiraea salici- 
folia was doubtfully referred to Cercospora rubigo Cke. & Hark. 
As I have not seen an authentic specimen of this species and the 
description is meager and not quite congruous I give some notes on 
the parasite that occurs in Wisconsin. 
