760 Wisconsin Academy of Sciences, Arts, and Letters. 
698. Cylindrospobium tradescantiae Ell. & Kellerm. 
On Tradescantia Virgiriica L. Racine. In these 
specimens the areas affected by the fungus were 
not purplish but yellow becoming brown. Some 
of the conidia are 100 microns long. 
699. Dilophospora alopecuri (Er.) Fr. 
On G alamagrodis Cianadensis Beauv. Fide Dr. Ernst 
A. Bessey in Journal of Mycology 12 , 57. Ke¬ 
nosha county and Wind Lake. 
700. Eusarium heterosporum Kees. 
On ovaries and glumes of Glyceria fluitans R. Br. ac¬ 
companying sclerotia of Claviceps. Racine. 
701. Gloeosporium betularum E. & M. 
On Betula nigra L. La Crosse. (Jolivette.) To 
this species I also refer a specimen on Betula 
papyrifera Marsh, from Ashland. The smaller 
acervuli are on spots or irregular brown areas, 
.5—2 cm in diameter but the sporules are similar 
although sometimes attaining a length of 16 
microns. 
702. Gloeosporium thalictri sp. nov. 
Spots circular to oblong, brown, with a narrow dark 
border, 5—10 mm in diameter; acervuli hypophyl- * 
lous, scattered, dark brown; sporules elliptical 
oblong, hyaline, 4—6 X 2—3 microns. Mellen, 
^ July 14, 1908. 
On Thalictrum dasycarpum Eisch. & Lall. 
703. Graphium gracile Pk. 
On Rubus strigosus Michx. Adams county. 
704. Marssonina necans (E. & E.) Magn. 
On Pteris aquilina L. Radisson. Magnus has pro¬ 
posed this generic name to replace Marsonia or 
Marssonia preoccupied by reason of being at¬ 
tached to a genus of spermatophytes. 
705. Marssonina violae (Pass.) Sacc. 
On Viola sp. indet. La Pointe. 
In the specimens which I have referred to this species 
the sporules are usually curved or falcate and the 
