Davis—Noies on Parasitic Fungi in Wisconsin — XI. 301 
serving but as there were a few peripheral cups that were not yet 
open it was decided to leave it one more day. The next day it was 
found that some creature with epicurean taste had carefully eaten 
out each cup except three or four that were not open. The evidence 
seems to indicate that there is in Wisconsin a rust bearing aecidia 
on Shepherdia canadensis and uredinia and telia on Carex ehurnea. 
Puccinia caricis-shepherdiae n. sp. 
Aecia; “Spots large, indefinite, yellowish; peridia hypogenous, 
elongated, cylindrical, white, nestling among the tomentum of tJie 
leaf; spores bright oransre, subglobose, 1-1000 in. in diameter.’’ 
Aecidium allenii Clint, in 24th Bept. of the New York State 
Museum, p. 93. Uredinia few, mostly culmicolous; uredospores 
elliptical, deep brown, ;Vall l%x2%/x thick, finely echinulate, 
germ pores two approximately equatorial, 23-33xl7-27jw,. Telia 
culmicolous and foliicolous, elliptical to linear, rupturing the epi¬ 
dermis, dark brown; teliospores brown, clavate, rounded to rounded- 
conical at the apex which is strongly thickened (up to 13/x) more or 
less constricted at the septum, the lower cell narrower and much 
paler than the upper, 44-63xl7-23/>i, pedicel hyaline, the length of 
the spore or shorter. This seems closely related to Puccinia prings 
heimiana Kleb. but the uredo and teliospores are somewhat larger 
and the pedicels of the latter longer and more firmly attached. On 
Carex ehurnea, Fish Creek, Wisconsin. 
[In 1923 an attempt was made to infect Shepherdia canadensis 
with teliospores from Carex ehurnea outdoors to see if the infections 
would not be more abundant than had been secured in the green¬ 
house. Old leaves of Carex ehurnea bearing telia were obtained at 
Fish Creek May 14th. Kusted leaves were placed under and on a 
plant of Shepherdia canadensis in an open plot from time to time. 
Two leaves bearing aecia were removed June 28th. During my 
absence after July 3d the plant was watched by Dr. E. A. Baird 
who removed two leaves bearing aecia July 23d and one July 31st. 
A plant of Shepherdia argentea exposed to infection in the same 
manner bore no aecia. No infection of this species occurred in the 
greenhouse in previous years. So far as the evidence goes at 
present S. argentea does not bear this Aecidium.] 
In June, 1922 a few uredinia were found on a leaf of Bumex 
altissimus growing beside the railroad at Madison. Later they 
were found in more abundance along the same railway line at 
