98 Wisconsin Academy of Sciences, Arts, and Letters. 
nearly straight conidia, 17-33 (mostly 24-27) X 
2-3 microns, ©rumpent in pale, slightly flesh-colored 
cirrhi on the lower surface of the leaf, which is 
hut slightly changed in appearance. This comes 
near Septogloeum fraxini , Hark., hut that is epiph- 
yllous with larger acervuli and broader conidia 2-5 
septate and curved. The conidia in Mar soma 
fraxini are, as far as observed, only one septate. 
607. Mastioosporium album, Riess , var. Oalvum, Ell. & 
Davis, n. var. 
On Calamagrostis Canadensis, Beauv. Vilas 
county. (J. J. Davis, 0220.) 
“It is Mastigosporium all hut the three bristles 
arising from the upper septum, so that it is either 
a variety or a new species,” J. B. Ellis in liit. 
608. Ovularia montliodes, Ell. & Martin. 
On Myrica asplemfolia, Endl., and Myrica Gale , 
L. Vilas county. 
609. Passalora fasciculata, (0. & E.) Earle. 
On Euphorbia coroll ala, L. Bacine. Thesym 
onymy of this species is fully given by Earle in 
Torreya, 2 , 10-159. 
610. Phleospora reticulata. Ell. & Evht. 
On Lathyrus venosus, Muhl. Bacine. 
611. Phyllosticta lappae, Sacc. 
On Arctium Lappa, L. Somers. 
612. Phyllosticta similispora, Ell. & Davis. 
On Solidago rigida, L. Bacine. 
613. Phyllosticta spermoides, Pk. 
On Vitis riparia, Michx. Madison. (Prof. B. 
A. Harper.) 
614. Bamularis effusa, Peck. 
On Vaccinium Canadense, Kalm. Vilas county. 
Apparently scarce. 
615. Bamularia mitellae. Peek. 
On Mitella diphylla , L. Bacine. 
