Davis—Notes on Parasitic Fungi in Wisconsin — VIII. 417 
is apart from the matter of the validity of Schweinitz’s descrip¬ 
tion which is certainly open to question. 
In the provisional list Bubus idaeus aculeatissimus is given as 
a host of Gymnoconia peckiana in the Caeoma stage. This is 
perhaps an error as I can find no specimen that I am sure is on 
a red raspberry and since my attention has been called to the 
matter I have seen no instance in the field. The host characters 
are usually modified in infected plants and determination often 
difficult. 
A collection of Aecidium monoicum Pk. on Ardbis lyrata made 
by J. M. Holzinger at Trempealeau on the Mississippi River was 
referred to in the appendix to the provisional list. It was col¬ 
lected in 1918 on the same host at Two Rivers on the shore of 
Lake Michigan. 
Kuehneola uredinis (Lk.) Arth. (K. albida (Kuehn) Magn.), 
as I have seen it on Bubus hispidus, forms telia on the over¬ 
wintered leaves in the spring quickly followed by aecia (Uredo 
muelleri Schroet.) on the young leaves of the season. The se¬ 
quence suggests that it is living mycelium that carries the rust 
through the winter. [In 1921 telia were observed on this host in 
September.] 
Additional Hosts 
Upon which the fungi mentioned have not been recorded 
as occurring in Wisconsin. 
Synchytrium aureum Schroet. On leaves and especially petioles 
of Budbeckia laciniata. Bruce. I am applying to this the desig¬ 
nation that has been used for similar forms on other hosts in Wis¬ 
consin. The sori lose their yellow color before maturity. They 
are often subepidermal on this host as on some others. The de¬ 
velopment of the sorus in the mesophyll I have thought might be 
due to a very firm cuticle, but that explanation does not seem a 
very probable one as regards this host. A collection made at 
Prentice on Petasites palmatus I have also referred to this species. 
Albugo Candida (Pers.) 0. Kuntze. On Arabis glabra. Mosinee. 
Sphaerotheca Inumuli (DC.) Burr. var. fuliginea (Schl.) Salm. 
On Bidens vulgata. Madison. 
27—S. A. L. 
