750 Wisconsin Academy df Sciences, Arts, and Letters. 
503. Physaeospoba ambeosiae E. & E. 
On Ambrosia artemisiae folia L. South Milwaukee. 
527. Mofilia lifhabtiafa Sacc. 
On young leaves of Crataegus, of Prunus serotina 
Ehrh. and P. Yirginiana L. Racine and Kenosha 
county. In Annates Mycologici, 6 , 109 et seq. 
1908, Mr. J. M. Reade gives some results of his 
investigation of Korth American species of 
Sclerotinia, the conidia of which are referred to 
the form genus Monilia. The name used in the 
2nd Suppl. List and given above was first applied 
to conidia on Prunus Padus in Europe. Mr. 
Reade considers the American forms distinct from 
this and that the forms on Prunus serotina 
Ehrh. and Prunus Yirginiana L. are distinct 
from each other referring them to Sclerotinia 
seaveri Rehm and Sclerotinia angustior Reade re¬ 
spectively. The forms on Crataegus are referred 
to Sclerotinia johnsonii (E. & E.) Rehm. Mr. 
Reade has kindly examined Wisconsin specimens. 
531. Phyllosticta decidua E. & K. 
On Monarda punctata L. Adams county. 
On Eupatorium perfoliatum L. Dousman. 
On Echinospermum Yirginicum Lehm. Racine. 
On the latter host the spots have a black-brown border; 
the pycnidia are about 80 microns in diameter 
and the sporules mostly 4—6 X 3—4. 
On Aralia racemosa L. Mellen. 
537. Septoeia bacieligeea Wint. 
On Ambrosia trifida L. Specimens collected in 
Kenosha county in September have sporules 
30—50 X 2 microns, apparently continuous. 
Possibly distinct. 
542. Septoeia eumicis Ellis. 
On Rumex altissimus Wood. Beloit. In this speci¬ 
men the spots are round to oval, light brown, con¬ 
centrically zoned about a lighter colored center 
