62 
Journal of Mycology 
[Vol. 11 
brown, subepidermal; teleutospores prismatic or oblong, 11-14 by 29-42 u-, 
rounded at both ends; wall cinnamon-brown, smooth, uniformly 1 ^ thick. 
On Salix amygdaloides Anders., and many other species of Salix, 
throughout the United States and Canada. 
Beside this common willow rust, another is known to occur on 
Salix herbacea L. in Greenland and on Mt. Washington, N. H., Melamp- 
sora artica Rostr. One other, Melampsora repentis Plowr., on Salix repens 
has been reported from North America, but has not been seen by the 
writer. 
2. Puccinia tomipara Trel. — I am indebted to Mr. 
E. W. D. Holway for the suggestion, which led to the certain 
demonstration of the aecidial connection for this species. Mr. 
Holway’s observations were made in the field, and showed such 
close association of the recently germinated teleutospores on 
over-wintered leaves of Bromus cilicitus and the appearing aecidia 
on Clematis Vir giniana, that the conclusion seemed foregone. 
His direct observations extended over two seasons. Teleuto- 
sporic material gathered by Mr. Holway at Decorah, Iowa, was 
sown on Impatiens aurea, Dirca palustris, Clematis Vir giniana, 
C. Fremontii, C. Scottii, C. Viorna, and with no infection ex¬ 
cept on Clematis Vir giniana. Teleutosporic material of Bromus 
ciliatus was kindly sent by Dr. J. J. Davis from Kenosha Co., 
Wis., and sown on Clematis Vir giniana with most abundant 
infection. Material was also used, obtained near Lafayette, 
Ind., on Bromus ciliatus, and sown on Dirca palustris and 
Clematis Vir giniana with no infection of the former and the 
most plentiful infection of the latter. The record of dates is 
as follows: 
May 12, Teleutospores (Iowa) sown on Impatiens aurea; no infection. 
May 12, Teleutospores (Iowa) sown on Dirca palustris; no infection. 
May 12, Teleutospores (Iowa) sown on Clematis Scottii; no infection. 
May 12, Teleutospores (Iowa) sown on Clematis Fremontii; no infection. 
May 12, Teleutospores (Iowa) sown on Clematis Vir giniana; May 19, 
spermogonia; May 28, aecidia. 
May 18, Teleutospores (Ind.) sown on Dirca palustris; no infection. 
May 25, Teleutospores (Iowa) sown on Clematis Scottii; no infection. 
May 25, Teleutospores (Iowa) sown on Clematis Fremontii; no infection. 
May 25, Teleutospores (Iowa) sown on Clematis Viorna; no infectiop. 
May 25, Teleutospores (Iowa) sown on Clematis Virginiana; May 31, 
spermogonia; June 9, aecidia. 
May 30, Teleutospores (Ind.) sown on Dirca palustris; no infection. 
May 30, Teleutospores (Ind.) sown on Clematis Vir giniana; June 7, 
spermogonia; June 15, aecidia. 
June 3, Teleutospores (Wis.) sown on Clematis Vir giniana; June 9, 
spermogonia; June 16, aecidia. 
This record shows that the report made last year, con¬ 
necting the teleutosporic stage on Bromus ciliatus with the 
aecidium on Dirca palustris 25 was a mistake. The teleutosporic 
material from Lafayette, which grew so abundantly on Cle¬ 
matis Vir giniana this year, came from the same plants that 
25 Jour. Mycol. 10:19. 1904. 
