288 Wisconsin Academy of Sciences, Arts, and Letters. 
It has been collected at Spooner, Dresser Junction and Alma. This 
differs from Basidiophora in the intrafoliar origin of the conidio- 
phores and the absence of distinct basidia. From Albugo it differs 
in the conidia being borne in a cluster on the apex of the conidio- 
phore instead of being catenulate. 
Circular black spots 3-4 mm. in diameter sometimes occur on 
leaves of Yitis vulpina and Vitis Mcolor in Wisconsin. They ap¬ 
pear like a young stage of Rhytisma but have been seen only on 
living leaves in summer. 
The parasite of TJlmus americana and TJ. racemosa recorded in 
“Notes” VI, p. 11, under the name Phyllosticta ulmicola Sacc. is 
referred to Ph. melaleuca E. & E. in North American Flora 6: 67. 
In the provisional list a parasite of Prunus virginiana was re¬ 
corded under the name Phyllosticta destruens Desm. regarding 
which a note was published in “Notes” I, p. 79. For this I am 
now using the binomial Phyllosticta virginiana (Ell. & Hals.) 
Seaver (A. A. Flora 6^: 70). This is not a typical Phyllosticta in¬ 
asmuch as the sporules are formed by successive basipetal divisions 
of filaments the proximal, as yet undivided, portions of which I 
take to be the “long sporophores” mentioned in the description of 
the similar Ph. innumerahilis Pk. in N. A, Flora 6^: 52. The micro- 
conidia, of some species at least, of Cylindrosporium are produced 
in the same way. The form on Amelanchier has been collected in 
Wisconsin on hosts referred to A. ohlongifolia and A. spicata. 
The Septoria which occurs on Cacalia atriplicifolia in Wisconsin 
produces white arid spots with a more or less broad dark purple 
border like those of S. nahali B. & C. Specimens from Missouri 
and Kansas are similar. The single specimen on Cacalia reniformis 
has brown spots with a narrow darker border. This developed in a 
moist deeply shaded station while those on C. at riplici folia developed 
in the open where they were exposed to the direct rays of the sun. 
The parasite of Spiraea described by Trelease under the name 
Ascochyta salicifoliae, referred to Septoria by Berlese & Voglino 
and to Cylindrosporium in “Notes” IV, p. 673 is referred to 
Phleospora by Petrak (Ann. My col. 20: 210-11). I quite agree 
with those who see the genus Phleospora as a mixture of species 
referable to other genera and hence one that should be dropped as 
was done by Diedicke in Kryptogamenflora der Mark Brandenburg 
and by Migula in Thome’s Flora von Deutschland. 
