Davis—Notes on Parasitic Fungi in Wisconsin — IX. 257 
sporium was observed at Fish Creek and under it a shrub of Salix 
lucida also bearing the Gloeosporium. 
Gloeosporium fraxineum Pk. On Fraxinus pennsylvanica. 
Mosinee. 
Gloeosporium aridum Ell. & Hoi. On Fraxinus nigra. Cary- 
ville. 
Colletotrichum graminicolum (Ces.) Wilson. On Melica striata, 
Mosinee. A Colie totrichum which was abundant on leaves of Car ex 
ehurnea at Pish Creek I do not distinguish from this species. 
Marssonina rhahdospora (E. & E.) Magn. On Populus tremu- 
loides. Millston, Cornell and Holcombe. My observation of this 
parasite does not lead me to look with favor on the suggestion of 
von Hoehnel that it is a form of Septoria populi Desm. 
The parasite recorded under the name Marssonina potentillae 
tormentillae Trail in ‘‘Notes’’ III p. 259 was collected on Bubus 
canadensis at Tomahawk but immature or imperfectly developed 
as usual. Collections of a similar character were made on a host 
referred to Bubus hispidus at Millston in 1912. 
Cylindrosporium vermiforme Davis. On Alnus crispa. Minoc- 
qua. In the collection on this host, which was made in August, the 
sporules are slender, being but about Sjn thick. 
Bamularia lysimachiae Thuem. On Lysimachia terrestris. Vilas 
County and Holcombe. Conidiophores up to 40/it long. 
Bamularia virgaureae Thuem. On Solidago nemoralis. Cary- 
ville. 
Bamularia asteris (Phil. & Plowr.) Bubak. On Aster lateri- 
florus. Nekoosa. Aster Tradescanti. Caryville and Madison. 
Cercosporella pyrina Ell. & Evht. On Pyrus ioensis, Nekoosa. 
A specimen on Erigeron annuus collected at Madison in Septem¬ 
ber and referred to Cercosporella cana Sacc. bears conidiophores 
50—100x3—6ju. 
Cladosporium subsessile Ell. & Barth. On Populus grandi- 
dentata. Muscoda. 
Cladosporium triostei Pk. On Triosteum aurantiacum. Glen 
Haven. In the material that I have seen the patches of conidio- 
17 
