768 Wisconsin Academy of Sciences, Arts, and Letters. 
aecial stage of this rust hut the season was too far 
advanced at the time of my visit to secure speci¬ 
mens. 
754. Gymnosporangium clavipes C. & P. 
(6r. germinate (Schw.) Kern.) Aecia (Roestelia 
aurantiaca Pk.) on Amelanckier sp. indet. Big 
Bay (Cheney) Long Island (Cheney) La Pointe. 
755. Melampsoridium betueae (Schum.) Arth. 
Uredinia on Betula pumila L. Madison (Prof. B. 
A. Harper & H. A. Pauly) and Burlington. 
Aecia on Larix Americana Michx. Douglas 
county. 
756. Pheagmidittm occidentals Arth. 
Aecia on Rubus parviflorus Hutt. La Pointe. 
757. PlICCINIASTRUM POTENTILLAE Kom. 
Uredinia on Potentilta tridenfata Ait. Gordon, La 
Pointe and Adams county. 
758. Uredinopsis atkinsonii Magn. 
On Aspidium Thelypteris Swartz. Pacine, Wind 
Lake and Kenosha county. This was given as 
Gloeosporium phegopteridis Frank in the sup¬ 
plementary list and as Melampsora scolopendrii 
(Fckl.) Farl. in the second supplementary list 
together with related forms now considered 
specifically distinct. 
759. Uredinopsis osmundae Magn. 
On Osmunda cinnamomea L. 0. Claytoniama L. and 
0. regalis L. Yilas county. This was referred to 
TJredinopsis scolopendrii (Fckl.) Diet, in the 
third supplementary list. 
760. ITredinopsis phegopteridis Arth. 
On Phegopteris Dryopteris Fee. Yilas county. This 
was placed with the preceding in the third sup¬ 
plementary list. 
761. Aecidium ceanothi E. & K. 
On Ceanothus ovatus Desf. Gordon. 
762’. Caeoma abietis—canadensis Farl. 
On Tsuga canadensis Carr. Mellen. 
