260 Wisconsin Academy of Sciences, Arts, and Letters. 
Additional Species 
Not previously recorded as occurring in Wisconsin. 
Plasmopara cuhensis (B. & C.) Humphrey. On Cucumis sativa 
(cult.). Madison. The first collection of this parasite in Wiscon¬ 
sin, to my knowledge, was made in 1920. It is hoped that it was 
merely casual. 
Eocronartium muscicola (Fr.) Fitzp. (Typhula muscicola 
(Pers.) Fr.) has been collected a number of times in Wisconsin 
on unidentified mosses. Most of the collections were made by 
Cheney in the northern part of the state. 
Cordyceps clavulata (Schw.) Ell. & Evht. On scale insects 
(Lecanium) on Fraxinus nigra and Ilex verticellata. Hannibal. 
Yery abundant on the black ash in 1920; seen on but two plants of 
Ilex. Immature specimens on Lecanium corni collected by J. G. 
Sanders in 1913 are probably of this species. Apparently parasitic 
on and destructive to the Lecanium. 
Phyllosticta phaseolina Sacc. On Strophostyles helvola. Cass- 
ville. The flattened pycnidia with dark and much thickened upper 
wall and pale basal wall hr ve a leptostromatoid appearance. 
Phyllosticta fraxinicola Curr. On Fraxinus pennsylvanica. 
Durand. Spots along the midvein, angular, pale margined; spor- 
ules 3-6x2%-3jt>i, smoky hyaline. 
On looking over a collection of Cercospora dioscoreae E. & M. one 
of the leaves was found to bear Phyllosticta dioscoreae Cke. Many 
of the sporules are two celled. 
Marssonina thomasiana (Sacc.) Magn. On Evonymus atropur- 
pureus. Glen Haven. In the Wisconsin collection the leaves are 
largely unspotted but pale spots appear late and red bordered 
ones are numerous. The subcuticular acervuli are mostly epi- 
phyllous, quite variable in size and soon naked. The sporules 
are 17-23x7-14/x, the lower cell narrower. In the description of 
the variety or “subspecies’’ fautreyana the width of the sporules 
is given as 4/x, but in Yestergrens Micromycetes rariores selecti 
1240, said to have been submitted to Saccardo, it approximates 
that of the sporules in the Wisconsin collection. 
